A bit more from the Sinn Fein manifesto launch. Vice-President Michelle O'Neill says the party has always "stood ready" to re-form the Northern Ireland Executive and wishes to resume talks.

"We believe in the assembly and the executive because we believe in the promise of the Good Friday Agreement."

She hopes the other parties "want to get around the table again" but the executive needs to be "just" and "credible".

The Northern Ireland Assembly has been suspended for nearly three years.

Confused by the latest election developments? Got a question about polling or policy? Or is there anything else you'd like us to explain?

Send your questions to BBC News via the form on this page and we'll do our best to answer them.

Today we have been answering questions specifically about transport, like this one from Sarah Cooper in Ipswich:

A - The Conservatives, Labour and Liberal Democrats are all pledging to build a new rail line linking Manchester and Leeds, expected to be completed before 2040.

In addition, the Conservatives would replace the current system of contracts for rail operating companies with a "simpler, more effective rail system". It says the current system is complicated.

Labour says it would return the operation of the trains to the public sector when the current franchises expire. The state-owned Network Rail already controls some stations, track and signals.

The Lib Dems say they would spend £15bn on enhancements to existing track and and other parts of the network, over five years. This commitment is in line with the record year of spending in 2017-18 during which there were upgrades to the system, on top of maintenance of the network.

Of the three parties, Labour and the Lib Dems are broadly putting more emphasis on public transport than the Conservatives.

You can read more questions on transport here.

A reminder of our ongoing effort to track election ads appearing on Facebook.

Our technology correspondent Rory Cellan-Jones and economics editor Faisal Islam are asking you to send us screenshots of ads and the information about why you're seeing them to election.ads@bbc.co.uk

Facebook's Ad Library is a public platform that shows you some information about how ads are being targeted, but not everything.

We know that political parties target voters in very specific areas, such as marginal seats. We also know that people are targeted by personal details - whether that's their hobbies or political interests, but this kind of targeting is also not shown to the public.

BBC Politics Live
BBC2's lunchtime political programme

Back to Politics Live and the discussion around the aftermath of the London Bridge attack.

Chris Philp, justice minister and Conservative candidate for Croydon South, defends the political arguments made by his party, blaming the attacker's release on legislation implemented by the last Labour government.

"It’s pointing out that when the sentence was handed down to Usman Khan in 2012, that happened under a policy enacted by the previous Labour government in 2008," he says.

He adds that "the parole board would have looked at his case” under changes implemented by the Conservative government.

In response to a tweet from David Merritt - father of victim Jack Merritt - criticising newspaper coverage of the attack - Mr Philp says there was, "no desire to stoke up hatred or division at all".

However, Mr Philp also adds: "There is a determination to make sure the public are kept safe, and that means when people are convicted of terrorist offences, that means that they reasonable proportion, if not all, of their sentence in prison for public protection."

BBC News Channel

Mark Littlewood, the boss of free market think tank the Institute of Economic Affairs, says EU trade deals can take an "extraordinary long time", on average around seven years.

"But I think there's also evidence the EU has not been particularly brilliant at negotiating them," he tells the BBC.

Other countries "show a certain fleetness of foot", he says, and adds: "The question is the UK be able to show that fleetness of foot... or will it take years on end?"

But Mr Littlewood says: "I'm relatively confident we can get things done more quickly than the EU has in the past."

Mr Littlewood says he predicts an EU-UK trade deal will be struck "at the last minute, as always happens here", around December 2020, as the deadline looms.

In the Conservative manifesto, Boris Johnson promises to meet that deadline for a deal - and vows not to extend the transition period if one can't be reached by then.

Critics say that means the UK could be facing a no-deal Brexit at that point.

Back at the Sinn Fein manifesto launch, leader Mary Lou McDonald addresses the view that, because her party doesn't take up its seats at Westminster, it enabled the DUP to "call the shots" on Brexit.

But Ms McDonald says no Irish MP "be they nationalist, unionist or otherwise" will decide Brexit.

"That matter has been decided by the English public and will be decided and shaped, in the first instance, by their elected representatives."

She says Sinn Fein has ensured the voice of the North has been heard and "heeded" in the Irish Parliament and Sinn Fein MEPs have ensured "special protections" for Northern Ireland have been "hardwired" into the EU's negotiating stance.

She says that's the kind of representation that people need.

Last week, we reported that Labour was re-shaping its general election campaign strategy - particularly in Leave-voting areas - to try to turn around the Conservatives' lead in the polls.

BBC News political reporter Peter Saull suggests some evidence of this can be seen in Labour Party chairman and Brexit supporter Ian Lavery's three-day tour of the so-called "Red Wall".

That's the name given by some to seats in the Midlands and north of England, which are former Labour strongholds now thought to be vulnerable because of Brexit.

BBC Politics Live
BBC2's lunchtime political programme

Panelists on Politics Live are discussing the political arguments between Conservatives and Labour that have followed the London Bridge attack.

Jack Blanchard, editor of London Politico Playbook, says "it became a political issue almost immediately", referring to Boris Johnson writing opinion articles and appearing on The Andrew Marr Show and calling for changes on sentencing for those convicted of terrorism offences.

Mr Blanchard says these moves reflect fears of being attacked by Labour - as the Conservatives were following the two terrorist attacks during the 2017 election - but it's a "risky political strategy" because of the potential for insensitivity.

Former adviser to Chancellor Sajid Javid Salma Shah also notes that "both parties are trying to play to their base again”, with Conservatives making arguments around law and order, and Labour criticising the foreign policy decisions that some argue have fuelled terrorism.

UKIP has substantially fewer candidates this year compared with both 2017 and its high point in the 2015 election.

After standing almost everywhere in 2015 and securing 12.6% of the vote (although just one seat), UKIP has scaled down its ambitions to targeting just 44 seats.

UKIP's interim leader Pat Mountain, launching her party's manifesto, said: “We are not nasty, racists; we are good, honest, caring people."

She said UKIP was the party of "free-thinking people" and the focus was to achieve "a complete and total exit from the EU".

"We want to send a message - the message that there is still a party in this country that can’t be brought, that can’t be pressurised into silence."

Here are a few more of UKIP's policies. Read the whole manifesto here, external.

• Scrap the bedroom tax and limit child benefit to three children

• End Right to Buy and Help to Buy schemes and provide grants to build homes on brownfield sites
• Employ an extra 30,000 teachers and encourage the establishment of new grammar schools

• Scrap HS2 and all road tolls
• Increase the Armed Forces budget by £7bn per year
• Increase police numbers in England and Wales by at least 30,000
• Scrap the Climate Change Act, axe subsidies for wind turbines and develop the domestic gas industry

• Abolish inheritance tax
• Repeal the 2010 Equality Act and shut down the Equalities and Human Rights Commission
• Scrap hate speech guidelines and the police and Crown Prosecution Service’s guidelines on "hate crime"

A short time ago, Martin Daubney from the Brexit Party took viewer questions on the BBC News Channel.

He said his party's candidates saw themselves as crucial to ensuring the 2016 Leave vote was honoured.

Image source, Reuters

• Both Conservative leader Boris Johnson and Labour leader Jeremy Corbyn attended a vigil in London, above for the two people killed and others injured in Friday's London Bridge attack
• Scottish National Party leader Nicola Sturgeon spent an hour answering questions from BBC listeners live on air. She urged voters in Scotland to back the SNP to prevent Boris Johnson getting a majority. She was also pushed over rates of crime and drug abuse in Scotland and her party's commitments on climate change
• Labour's big election focus of the day is a pledge to cut rail fares at a cost of £1.5bn a year. Jeremy Corbyn launched the policy at Finsbury Park station in London. Shadow transport secretary Andy McDonald would not say whether planned road upgrades would be axed in order to redirect the money towards rail
• The Tories are focusing on moves they say would tighten up security at the UK's borders - including automated exit and entrance checks. It's worth noting that successive UK governments have attempted to introduce a more reliable system for counting people in and out of the country, with limited success.
• And the final two manifesto launches of the election are happening - Sinn Fein and UKIP. UKIP's manifesto includes pledges to abolish prescription charges, employ 30,000 more teachers and scrap police and prosecution service guidelines on hate crime. Sinn Fein, meanwhile, is keeping much of its focus on Brexit and the need, if at all possible, to stop it

Forgive us our jumping back and forth here, but the UKIP and Sinn Fein launches are taking place simultaneosly.

At the latter, Sinn Fein leader, Mary Lou McDonald says this is "the election of a generation".

"Brexit has changed everything for all of us," she tells those gathered in Londonderry, and has "had the effect of uniting improbable allies in the face of real threats to people's livelihoods".

She adds: "The north has not consented to Brexit."

Sinn Fein, which opposes Brexit, announced last month that it would not be running candidates in three Northern Ireland constituencies: South Belfast, East Belfast and North Down. Instead, it's urging its voters to back pro-Remain candidates in those constituencies.

You can read more about Sinn Fein here...

Ms McDonald says the DUP "needs to be called out" for "aggressively promoting an agenda" that can "bring nothing but hardship" for people.

Read our digest of the DUP's manifesto here.

The Guardian's Peter Walker is also watching the UKIP launch. He says "the feel is very much old-school, Godfrey Bloom-era" UKIP.

Mr Bloom was a UKIP MEP from 2004 to 2014 and became known for his controversial remarks.

Image source, UKIP/Facebook

Some of the most eye-catching UKIP policies, as the manifesto launch continues:

• Aim to reduce net migration to below 10,000 per year
• Reduce and cap the number of foreign students to 500,000

• Migrants can not obtain citizenship until they have worked in the UK for 10 continuous years and fully assimilated into the country, with fluent spoken and written English

• Abolish prescription charges in England at a cost of £750m, to be funded by "ending health tourism"

• "Dramatically increase" the number of training places for British doctors, nurses and paramedics

• Increase social care funding in England by £5bn
• Exempt a person’s primary residence from means-testing for social care

Norman Smith
Assistant political editor

People have been a little bit uneasy about some of the language and some of the blame game that seemed to erupt very, very soon after the terror attack.

Normally outside of elections, when you have a terror attack there's a sort of pause for reflection, people review exactly what's happened and politicians just hold back - that didn't happen in this case.

Partly that's because of the clear, I think, fear among senior Conservatives that they didn't want any repeat of what faced Mrs May duribng the last election when we had the Manchester terror bombing.

In the aftermath of that she was pretty much knocked off course for two, three, four days after Labour honed in on the issue of police cuts and whether that had any role in the attack.

So there was a determination to get on the front foot. That in turn resulted in a fairly swift and unequivocal apportioning of blame by Boris Johnson - in effect saying the reason Usman Khan had been released was precisely because of the actions of the previous Labour government.

As it transpires it seems the situation is a good deal more complex than that.

And interestingly, this morning, I thought the Justice Secretary Robert Buckland struck a slightly more nuanced tone.

For their part, Labour have honed in again on the impact of austerity on the police, prison service, probation service and social services, saying this has contributed to the problem and made it much harder to rehabilitate these sorts of offenders.

As UKIP set out their policy pledges, Sinn Fein is also launching its Westminster election manifesto today.

Just for background, Sinn Fein won seven out of the 650 seats at Westminster at the last election in 2017, but the party’s MPs do not take up those seats.

it's a policy called abstentionism, based on the view that the interests of the Irish pepole can only be served by democratic institutions in Ireland, not at Westminster.

Party leader Mary Lou McDonald spoke to the BBC's John Pienaar on Sunday.

UKIP is currently launching its manifesto, which has been entitled "For Brexit and Beyond".

The event opens with an address from the party's interim leader, Patricia Mountain, who says Boris Johnson's Brexit deal - more on that here - is "not leaving the EU".

Among its pledges on Brexit are:

• No more money to be paid to the EU and no more open-border EU immigration
• Leaving the single market and customs union as well as the Common Agricultural Policy and Common Fisheries Policy
• Seek a free trade agreement with the EU, or trade on WTO terms
• No regulatory or customs border down the Irish Sea

The Press Association's George Ryan is there...

Image source, UK Parliament

In an interview with the i newspaper, external, Lib Dem justice spokesperson Christine Jardine has claimed the current regime of police stop and search - and the Conservative manifesto pledge to use it more - is disproportionately affecting people from ethnic minorities.

"You are 47 times more likely to be stopped and searched if you're black or BAME than if you're white," she said.

"Now that surely tells you that there's something wrong with it there and then because that's an outrageous figure."

Ms Jardine went further, saying the policy of stop and search was "racist".

"They're not recognising the racist element of it, and they should. If they've looked at the figures, they must have seen the huge disparity - and why haven't they acted on that?"

The Conservative manifesto promises greater freedom for police to stop and search those known to have carried knives.

Earlier this year, the BBC looked at the rights of someone if they find themselves the subject of a stop-and-search.

Confused by the latest election developments? Got a question about polling or policy? Or is there anything else you'd like us to explain?

Send your questions to BBC News via the form on this page and we'll do our best to answer them.

Today we have been answering questions specifically about transport, like this one from Sian T in Kingswinford:

A - The main parties are all promising more money for public transport.

The Conservatives say they would try to reverse some of the Beeching cuts of the 1960s, which slashed the number of local railway lines and stations. This would be focused on the north of England and the Midlands, at a cost of £500m.

Labour says it would cut rail fares by 33%, at a cost of £1.5bn a year, and make train travel free for young people under the age of 16. It also wants to return the bus system to council control and thousands of routes that have been cut would be reinstated.

The Lib Dems would introduce a fare freeze on train tickets in England until 2024. This would apply to all peak-time and season tickets.

In its manifesto, the SNP pledges to invest over £500m in bus infrastructure.

You can read more questions on transport here.

A vigil is taking place in central London for those killed and injured in Friday's attack.

London Mayor Sadiq Khan stands here alongside Boris Johnson and Jeremy Corbyn.

Jack Merritt and Saskia Jones lost their lives - their families have been paying tribute.