Brexit Secretary David Davis, who has been leading UK negotiations to leave the EU, has resigned from government.

In his resignation letter, Mr Davis criticised the PM's Brexit plan - agreed by the cabinet on Friday - saying it would leave Parliament with "at best a weak negotiating position".

In her reply, Mrs May said she did not agree but thanked him for his work.

The resignation is a blow to Mrs May as she seeks to win over Eurosceptic MPs to her proposed Brexit vision.The UK is due to leave the European Union on 29 March 2019 after a referendum was held in 2016, but the two sides have yet to agree how trade will work between the UK and the EU afterwards.