The UK Prime Minister Theresa May said on Friday that she would step down on 7 June but continue serving as prime minister until a new party leader was elected. In an emotional farewell speech, May said she regretted that she had not delivered Brexit and stressed that her successor would have to find consensus in parliament.
The Conservative Party chairman, Brandon Lewis, has reportedly said that nominations for leadership would be submitted in the next three weeks.
UK lawmakers have already rejected the withdrawal agreement, negotiated with Brussels, three times.
The United Kingdom initially was to leave the European Union on 29 March.
A withdrawal deal was reached weeks before the date, but UK lawmakers refused to pass it, with fears of the re-established of a hard border on the island of Ireland being one of the main points of concern. The Brexit deadline was subsequently moved to 31 October.