Keir Starmer to leave his job as UK prime minister

Sir Keir Starmer has announced that he is stepping down as UK prime minister and leader of the Labour Party.

Speaking outside Downing Street on Monday morning, Mr Starmer said that becoming prime minister had been the "proudest moment of my life".

He added that every decision he had made in office had been about "putting the country I love first".

A contest for a new leader of the Labour party is expected to begin next month.

The winner will then become the next prime minister because the Labour Party is the biggest political party in parliament.

Mr Starmer said he would remain as prime minister until the contest is complete and until power is handed over to a new leader.

He added that a new Labour leader - and prime minister - will be in place before parliament returns after the summer break, in September.

Andy Burnham - who many people think could replace the PM - will be in Westminster today to be sworn in as the new MP for Makerfield after winning the by-election last week.

More on this story to follow.