UK`s embattled Prime Minister Boris Johnson will face a vote of confidence in his leadership of the Conservative Party, the chair of the party`s backbench committee announced on Monday, days after more details of the partygate scandal emerged.

Sir Graham Brady, who is in-charge of collating the letters of no-confidence received by the 1922 Committee, said the threshold of 15 per cent of the Tory parliamentary party, or 54 MPs, seeking such a vote has been met and it will place on Monday evening in the House of Commons. "The threshold of 15 per cent of the parliamentary party seeking a vote of confidence in the leader of the Conservative Party has been exceeded," Brady said in a statement. "In accordance with the rules, a ballot will be held between 18:00 and 20:00 (local time) today Monday June 6, details to be confirmed. The votes will be counted immediately afterwards. An announcement will be made at a time to be advised. Arrangements for the anno will be released later today," he said.