he UK and EU have failed to reach an agreement to move to the next stage of Brexit talks, Theresa May has said.
The prime minister said talks would reconvene "before the end of the week" and she was "confident we will conclude this positively".
The talks are understood to have broken down after the Democratic Unionist Party refused to accept concessions on the Irish border issue.
Downing Street said that was not the only outstanding problem.
Irish Prime Minister Leo Varadkar said a deal had been done, but the UK appeared to change its mind over the Irish border question after pressure from the DUP.
"I am surprised and disappointed that the British government now appears not to be in a position to conclude what was agreed earlier today," he told a press conference in Dublin.T
Read more: Britain and EU fail to strike Brexit talks deal - BBC News
The prime minister said talks would reconvene "before the end of the week" and she was "confident we will conclude this positively".
The talks are understood to have broken down after the Democratic Unionist Party refused to accept concessions on the Irish border issue.
Downing Street said that was not the only outstanding problem.
Irish Prime Minister Leo Varadkar said a deal had been done, but the UK appeared to change its mind over the Irish border question after pressure from the DUP.
"I am surprised and disappointed that the British government now appears not to be in a position to conclude what was agreed earlier today," he told a press conference in Dublin.T
Read more: Britain and EU fail to strike Brexit talks deal - BBC News