David Cameron’s sister-in-law has pledged her support for the Labour Party after the UK voted for Brexit in the EU referendum.

Emily Sheffield, who is the deputy editor of British Vogue and Samantha Cameron's sister, has vowed to switch from the Conservatives to the opposition on Twitter by asking: “How quickly can I join the Labour Party?”

Ms Sheffield said she was keen to make sure the “right wing Tories are held at bay” following the success of the Leave campaign in the referendum. She said she had “only voted Tory for David [Cameron].”

She also said she had voted Labour before and asserted: “The far right is not my home”.

Ms Sheffield then went on to urge people to sign a petition to prevent Article 50 being triggered, which will officially begin the process for the UK to leave the EU.

The statements from Ms Sheffield come after Mr Cameron announced he would stand down as Prime Minister.