15:42

The BBC has postponed its Question Time special this evening involving Nicola Sturgeon, the Scottish National party leader, and Tim Farron, leader of the Lib Dems, after the London Bridge attacks, the BBC has said.

Filmed in Edinburgh, the programme was to have been aired during prime time at 6.05pm this evening following last week’s Question Time special featuring Theresa May and Jeremy Corbyn. But the BBC has cancelled or postponed all of its set-piece Sunday political programming given the attack on London Bridge on Saturday night.

Jonathan Munro, head of newsgathering for BBC News, tweeted:

Jonathan Munro (@jonathancmunro) Tonight's Question Time Leader Special is making way for @BBCNews special. #bbcqt will be rescheduled.

There had been intense talks about rearranging today’s programme with the SNP and Lib Dems but no new date for filming or broadcasting the show has been agreed.

Sturgeon’s timetable is now looking extremely tight since she is also due to appear in a Scottish leaders debate on STV on Tuesday evening in Glasgow. She is also still working as first minister of Scotland, while also acting as figure head for her party’s general election campaign.

The BBC Question Time webpage has added to confusion about its rescheduling. It says the programme is being aired 10.30pm on Sunday on the BBC Parliament channel and was then being re-shown at midnight tonight on the BBC News Channel and 0.30am on Wednesday.

But party sources said this was inaccurate: today’s filming in Edinburgh has been cancelled.