Theresa May could formally trigger Brexit as early as Tuesday after European leaders revealed that they are already making preparations for an announcement.

Ministers are increasingly confident that Mrs May's Article 50 bill could clear both the Commons and the Lords on Monday.

The swift passage of the legislation would clear the way for Mrs May to trigger Brexit negotiations in the Commons on Tuesday.

Cabinet ministers are privately pressing Mrs May to "get on with Brexit" and trigger Article 50 "as soon as possible", The Telegraph understands.