Former British Prime Minister Keir Starmer has announced he is to stand down as MP for Holborn and St Pancras, a move that will trigger a by-election in the London seat.

Keir Starmer previously insisted he would stay on as the member for Holborn and St Pancras.

Keir Starmer is to step down as a Labour MP after resigning as Prime Minister earlier this summer to focus on international affairs and tackling violence against women and girls

Greens will target former prime minister’s seat in central London byelection