British Prime Minister Theresa May arrives to meet with German Chancellor Angela Merkel at the chancellery in Berlin, Germany December 11, 2018. REUTERS/Annegret Hilse

LONDON (Reuters) - Lawmakers in Prime Minister Theresa May’s Conservative Party triggered a vote of no confidence in her leadership on Wednesday as Britain’s planned divorce from the European Union was plunged into chaos.

Graham Brady, chairman of the party’s so-called 1922 committee, said the threshold for a vote had been exceeded.

A ballot will be held between 1800 and 2000 on Wednesday in the House of Commons and an announcement made as soon as possible afterwards, he said.