Today Programme
BBC Radio 4

Lord Carlile is also asked about whether staffing for security services and police is adequate.

He says he thinks it is, but he hopes the next government will give "significant new resources" to the counter-terror initiative Prevent, which he says has been working "much better than some media give credit for".

Today Programme
BBC Radio 4

A man arrested by armed police near the Houses of Parliament on suspicion of terrorism offences is being questioned by detectives. 

Lord Carlile, the former independent reviewer of terrorism legislation, tells the Today programme the incident "shows how vital intelligence is and the different ways in which intelligence operates".

He says police followed the man until he was "very, very close" to Parliament. 

"Plainly that was intelligence that came from various sources," he says. 

Speaking about the kind of intelligence that goes into preventing incidents, he adds: "What we're talking about here is a range of intelligence, from old fashioned following people in the street to the type of intelligence that metaphorically comes close to rocket science."

Mr Nuttall says he has asked local branches around the country to stand aside for "real Brexiteers".

He suggests these would be Conservative MPs who had campaigned for Leave groups such as Vote Leave and Leave.EU and were sitting on slender majorities. 

Asked about how many seats UKIP would not be standing in, he says: "We're not talking the hundreds, we're talking the tens." 

He says reports the party might stand in as few as 100 seats are "complete nonsense".

Today Programme
BBC Radio 4

The leader of UKIP has said the party will not roll back on its proposed ban on full face coverings. Paul Nuttall defended the party’s policy, saying the ban would encourage integration. 

Mr Nuttall confirmed he would indeed be standing in next month’s general election but refused to be drawn on where. He said UKIP were looking for “real Brexiteers” to be back in the Commons.  

Today Programme
BBC Radio 4

Mr Nuttall is also asked about comments by proposed UKIP parliamentary candidate Anne Marie Waters, who reportedly said "Islamic culture does not fit with ours". 

He says she has been selected by a local branch of UKIP in Lewisham, and her comments will be considered later by the party's national executive committee. 

Asked if it is possible that she will be prevented from standing, Mr Nuttall replies "yes".

He does not say personally whether he wants her to stand or not. 

"I've seen some of the things she said, which made me a bit uncomfortable," he adds. 

Today Programme
BBC Radio 4

Mr Nuttall is also asked where he will stand in the election, but refuses to say.

He says he will make the announcement tomorrow.   

Mr Nuttall adds that it's his "duty to lead the party into battle".

Today Programme
BBC Radio 4

Mr Nuttall is asked about his party's election pledge to ban the burka.

His party's foreign affairs spokesman resigned from his post over the proposal and UKIP donor Aaron Banks criticised it as well, saying he did not approve of the party going to "war" with Muslims . 

But Mr Nuttall said the party would not reverse the policy. 

"If you want to enjoy the full fruits of our society, you have to show your face," he said.  

Image source, PA

UKIP leader Paul Nuttall will launch the party's general election campaign today with a speech in London.

He has also confirmed that he is going to stand for Parliament, but not which seat he will seek election in. 

Mr Nuttall came second in the Stoke-on-Trent Central by-election in February. 

He will appear on BBC Radio 4's Today programme at 07:09 this morning.

Good morning from the BBC politics live team.

Here's a round-up of the stories you are waking up to:  

• UKIP leader Paul Nuttall has confirmed he will stand as a candidate at the general election and has said he will soon confirm what constituency he is standing in
• Nicola Sturgeon is to prioritise public services and community investment when she takes the SNP election campaign to a key constituency later
• The UK is urgently drawing up new laws that will enable it to continue imposing sanctions on foreign countries after Brexit
• Police are questioning a man arrested near the Houses of Parliament on suspicion of terrorism offences  

It's been a busy day in Westminster, here's a look back at the stories that made the headlines. 

• A man carrying knives near the Houses of Parliament has been arrested on suspicion of terrorism offences
• Foreign Secretary Boris Johnson accused Labour leader Jeremy Corbyn of being a threat to the UK and described him as a "mutton-headed, old mugwump"
• Theresa May said German Chancellor Angela Merkel's Brexit comments showed the need for the UK to have the strongest possible hand and leadership in negotiations
• Boris Johnson says it would be very difficult for the UK to refuse the US if it asked for support in another military strike on Syria  
• Labour has pledged to build a million new homes over five years, if its wins power at the general election. 

Image source, PA

Labour MP Michael Dugher, the former shadow culture secretary who is standing down at the general election, has been appointed as the new chief executive of UK Music. 

Mr Dugher, a critic of Labour leader Jeremy Corbyn, will take up the position with the music industry trade body in mid May.

The MP is known in Westminster for his love of pop music - especially the Beatles - and performed at the Cavern Club in Liverpool during Labour's Party conference in 2016.

Labour's national elections chairman Andrew Gwynne says the people of Leeds "won't be fooled" by the campaign speech Theresa May gave there earlier today. 

"Theresa May is going to extraordinary lengths to blinker the British public and make this election about anything other than her record in government," he adds. 

"Under the Tories, working people have picked up the bill while those at the top have received tens of billions of pounds of tax breaks. 

"Wages have stagnated, public services have suffered huge cuts and our NHS is in crisis. It is clearer than ever that the Tories are for the few, not the many."