British media outlets say the most senior official in charge of negotiating Britain's exit from the European Union has quit Prime Minister Theresa May's Government.
The Press Association, the BBC and others say Brexit Secretary David Davis resigned today, 48 hours after May announced that her divided Government had at last agreed on a plan for ties with the EU after the UK leaves next year.
Davis' resignation undermines May's fragile Government.
UK media reported that UK junior Brexit ministers Steve Baker and Suella Braverman have also resigned.
Davis has been a strong pro-Brexit voice in a Cabinet divided between supporters of a clean break with the bloc and those who want to keep close ties.