Ukip has vowed to target the seats of MPs who voted against triggering Article 50 last night, despite serving constituencies who voted Leave the European Union in June.

A total of seven MPs rebelled against Theresa May's plan to trigger Brexit yesterday, in a vote which supporters said gave the Prime Minister a "blank cheque" to take Britain out of Europe.

Ukip sources have said they will pour all their efforts into winning over the MPs' six English and Welsh constituencies in the next general election.