Jeremy Corbyn says the threat of terrorism cannot and should not be reduced to questions of foreign policy alone

"But too often the actions of successive governments have fuelled, not reduced that threat," he says.

He points out that he opposed the invasion and occupation of Iraq, saying he knew it would set off a "sprial" of misery, hate and conflict.

"It did, and we are still living with the consequences today," he adds.

He also says he warned against the Nato-led intervention in Libya in 2011.

"The war on terror has manifestly failed," he says, adding that "Britain’s repeated military interventions in North Africa and the wider Middle East, including Afghanistan, have exacerbated rather than resolved the problems".

The Lib Dem leader Jo Swinson has backed comments made by her party's deputy Ed Davey - who accused Boris Johnson of "politicising" the London Bridge attack.

Speaking to the BBC's John Pienaar, Ms Swinson said: “This was an opportunity for Boris Johnson to be a statesman and yet again he has failed in that and just shown why he is not fit for the job of prime minister.”

She accused the PM of making the attack "an election issue", which is "pretty distasteful".

“The suggestion that there’s some immediate law change, that you can do this with some tough rhetoric and, as he has done, link majority government to success in tackling terror, I just think it leaves a nasty taste in the mouth,” she adds.

She rejected the suggestion that it is inevitable all sides will be playing politics in some way.

"I think we ought to be able to behave with respect, even when these things happen in the middle of a general election campaign," Ms Swinson adds.

Mr Corbyn adds public services need to be funded properly to protect the public, saying "you can't keep people safe on the cheap".

He says: "Community policing, the probation service, mental health, youth and social services, all play a vital part.

"When those public services are cut back, as they have been during the past decade, they leave behind gaps.

He cites the example of the probation service and its part-privatisation in 2014, which he calls a "disaster".

He adds a "failure to recruit has left huge staffing shortfalls".

"Real security doesn’t only come from strong laws and intelligence, it comes also from effective public services that have the funding they need."

Jeremy Corbyn, who is speaking in York, goes on to the issue of security after the London Bridge attack.

"No government can prevent every attack... but the government can act to make such acts of terror less rather than more likely," he says.

He pays tribute to the actions of members of the public who intervened in the attack on Friday, saying: "You are an example to us all."

"It is now more than ever that we must come together in our communities," he says.

Jeremy Corbyn is speaking in York in what is being billed as "major speech" on foreign policy.

The Labour leader first addresses the issue of caring for military veterans.

"When the parade is over... too many of our serving soldiers then go back to inadequate accommodation and all the stress that goes with it," he says.

Understandably, a large part of Andrew Marr's interview with Prime Minister Boris Johnson focused on Friday's stabbing attack at London Bridge and the policy questions arising from it.

But Mr Johnson was also asked about other topics including Islamophobia and local libraries struggling to stay to open.

• On Islamophobia: the PM is asked about why certain candidates are still in the Tory party, Mr Johnson says there is an "independent process" that considers all accusations of prejudice, and the Conservatives are "ruthless about that".

• On local libraries struggling to stay open: Mr Johnson says "some local authorities have been able to manage their finances so as to open libraries.” He cities his own borough, saying the local council has been able to open libraries.

Image source, West Midlands Police

This is the case the politicians are arguing about.

Usman Khan, 28, was out on licence from jail when he killed two people and injured three others at London Bridge on Friday.

Read our full story about why exactly Khan was out of prison.

Andrew Marr asks Boris Johnson about his refusal to commit to an interview with the BBC's Andrew Neil.

The Ministry of Justice has confirmed the number of offenders, convicted of terrorism offences, who are currently under supervision in the community is 74.

It comes after Boris Johnson used the figure in his interview with Andrew Marr a short while ago.

Anonymous legal blogger the Secret Barrister has criticised a Twitter thread by the PM, external that says London Bridge attacker Usman Khan was automatically released under a Labour law .

In a Twitter post, external, the Secret Barrister says the prime minister "has basically copied and pasted my blogpost into a thread and passed it off as his own explanation".

"A blogpost which I had to write to rebut the lies he spent yesterday spouting," the Secret Barrister adds.

Reality Check

Here is some more detail on the issue of early release, which has become the subject of a row between the parties in the aftermath of the London Bridge attack on Friday.

Attacker Usman Khan, 28, who was shot by police during the attack, was jailed over a plot to bomb the London Stock Exchange in 2012, but released on licence in December 2018.

2003 - The Criminal Justice Act meant most offenders would be automatically released halfway through sentences, but the most "dangerous" would have their cases looked at by a Parole Board. Sentences with no fixed end point, called Imprisonment for Public Protection (IPP), were also introduced.

2008 - Criminal Justice and Immigration Act removed review process by Parole Boards, meaning more offenders were released automatically halfway through sentences. Judges could still hand down life sentences or IPPs for dangerous offenders.

2012 - Usman Khan was handed a sentence with no fixed end date because of the risk he posed to the public. In the same year, the Legal Aid, Sentencing and Punishment of Offenders Act scrapped IPPs and reintroduced the role of the Parole Board for extended sentences of 10 years or more - this time after two-thirds of the sentence has passed. But that did not mean those already serving IPPs would have them lifted.

2013 - During an appeal, Lord Justice Leveson ruled that Khan's indeterminate sentence should be substituted for an extended sentence with automatic release at the halfway point.

You can read more about Khan - and his path through the justice system - here.

Asked about his Brexit deal, Mr Johnson insisted there would be no tariffs and checks on goods moving from Northern Ireland into Britain.

He tells Andrew Marr: "There will be no tariffs and there will be no checks, and what we will ensure is that the whole of the UK - Northern Ireland and the rest of us - can come out."

Asked how many EU directives and regulations would apply to the people of Northern Ireland that do not apply to the rest of the UK, the PM said: "That will be a matter for the people of Northern Ireland.

"The point is that Northern Ireland and the whole of the rest of the UK will be able to come out, do free trade deals, do things differently, we'll have free ports in Northern Ireland, we'll be able to cut VAT on sanitary products in Northern Ireland - all the advantages of Brexit will be there.

"Yes, for a period, Northern Ireland can remain in alignment with the rest of the EU if they choose to do so. If after four years the people of Northern Ireland decide that those regulations that you cite are not suitable for them, they automatically fall away."

Mr Johnson has repeatedly blamed the previous Labour government for its automatic early release scheme that allowed the early release of London Bridge attacker Usman Khan.

But Andrew Marr challenges him, saying Conservative governments have had 10 years to change the system for dealing with violent and terrorist offenders.

The prime minister says: "The reason this killer was out on the streets was because of automatic early release which was brought in by a leftie government."

Pressed on cuts to prison and probation services and the rising levels of assaults on staff during this time, the PM adds: "That is why this new Conservative administration is putting £2.5bn into our prison service."

Asked why this has not happened under the last years of Conservative government, he added: "I'm a new Prime Minister, we take a different approach."

It had been reported that the BBC would not allow the PM to appear on Andrew Marr's programme unless he also agreed to be interviewed by Andrew Neil - who has already grilled other party leaders.

But the BBC later said the Andrew Marr interview was "in the public interest" following the London Bridge attack.

Asked about why he has refused to commit to being interviewed by the Andrew Neil, Mr Johnson initially dodges the question, before saying: "I am perfectly happy to be interviewed by any interviewer called Andrew from the BBC."

Just before his appearance on the Andrew Marr Show, Boris Johnson took to Twitter to challenge what he calls "many inaccuracies" reported about the prison sentence of London Bridge attacker Usman Khan.

The PM says the case has highlighted a "complicated area of law", adding that four sentencing regimes used for offenders considered dangerous have become "confused".

In a thread of 16 tweets, he reiterates the attacker was sentenced under "Labour's old regime" and so was "automatically released" after serving half his sentence on December 2018.

Had Labour not made changes to the law in 2008, Khan "would not have been eligible for automatic early release, instead the Parole Board would have had to decide whether he was safe to be released", Mr Johnson says.

Mr Johnson's Twitter comments are the latest development in a row about Khan's release.

You can read more about it here.

An urgent review of the licence conditions of people jailed for terror offences has been launched by the Ministry of Justice following Friday's London Bridge attack.

When asked how many other convicted terrorists have been released early from prison, like Usman Khan was, Mr Johnson says "there are probably about 74".

Challenged by Andrew Marr on what the authorities are doing to address any potential problems, he says "they are being properly invigilated to ensure there is no threat to the public, and we took that action immediately".

Mr Johnson says if elected, the Conservatives will put "huge sums" of money into tackling terrorism, as well as policing and the NHS.

When pressed about the licence conditions Usman Khan was obliged to follow on his release from prison, the PM tells Andrew Marr: "He had mentors, he had restrictions on his mobile phone, restrictions on internet access, and so on."

On the automatic release scheme that Khan was released under, he stresses it was introduced by Labour, adding: "I opposed it both in 2003 and 2008, and now that I am prime minister I'm going to take steps to make sure that people are not released early when they commit... serious sexual, violent or terrorist offences."