Announcement comes nearly three months after Cameron quit as PM in the wake of Britain's vote to leave the EU.
Former British Prime Minister David Cameron has announced his resignation from his seat in parliament "with immediate effect". The news on Monday came nearly three months after he stepped down from his job as the country's leader in the wake of Britain's vote to leave the European Union.
Cameron, who first came to power in 2010, said he had told his succesor, Prime Minister Theresa May of his decision to stop representing his constituency in Oxfordshire to make way for someone who could concentrate on the area in central England.
The ruling Conservative Party elected May to lead the country after Cameron resigned following his failed campaign to persuade voters to remain in the European Union in a June 23 referendum.
He had campaigned in favour of remaining in the EU.
Cameron had won re-election in 2015, but his position became untenable after losing the EU vote on June 23. He had campaigned in favour of remaining in union. May is overseeing the process of Brexit, or Britain's exit from the bloc.
Cameron's unexpected announcement will trigger a by-election for his seat in Oxfordshire.
