Prime Minister David Cameron is to step down by October after the UK voted to leave the European Union.
In a statement outside Downing Street, he said he would attempt to “steady the ship” over the coming weeks and months but that “fresh leadership” was needed.
The PM had urged the country to vote Remain but but was defeated by 52% to 48% despite London, Scotland and Northern Ireland backing staying in. UKIP leader Nigel Farage hailed it as the UK’s “independence day”.
“The British people have voted to leave the European Union and their will must be respected,” said Mr Cameron. “The will of the British people is an instruction that must be delivered.”