LONDON: British Prime Minister Theresa May has promised to hold an election to pick her successor following the next Brexit vote in the first week of June.

The agreement follows a meeting between the prime minister and senior Tory MPs who are demanding a date for her departure from Downing Street.

If she loses the vote on her Brexit plan, already rejected three times, sources told the BBC she would resign.

Meanwhile, Boris Johnson has said he will run for leader once May goes.

The prime minister survived a confidence vote by Conservative MPs at the end of last year and party rules mean she cannot formally be challenged again until December.

(Agencies)