British Prime Minister Theresa May will travel to a critical European Union summit with her authority diminished after Tory rebels inflicted a humiliating House of Commons defeat on the British Government in a major Brexit vote.

UK ministers have promised fresh limits on powers contained in flagship Brexit legislation in a bid to avoid a Tory rebellion in the British Commons.

Britain’s Brexit secretary David Davis has written to MPs in a last-ditch attempt to avert a Tory revolt and potential Commons defeat for the UK Government’s Brexit legislation.

British Prime Minister Theresa May is facing the "real possibility" of Commons defeat on her flagship Brexit bill unless MPs are guaranteed a "meaningful vote" on leaving the EU, Tory rebels have warned.