Theresa May has said she is “determined” to deliver Brexit on time, ahead of talks on the Irish backstop.
Writing in the Sunday Telegraph, the prime minister said she would return to Brussels with a “fresh mandate, new ideas and a renewed determination”.
MPs have voted to seek an “alternative arrangement” to guarantee the Northern Ireland border stays open after Brexit.
But the Irish deputy prime minister has said “there are no credible alternative arrangements” to the proposal.
The backstop forms part of the withdrawal agreement negotiated by the UK and EU and is aimed at keeping the border between Northern Ireland and the Irish Republic open after Brexit.
BBC political correspondent Chris Mason said that while Mrs May pledged to “go back to Brussels to secure a plan that Parliament can stand behind”, the EU remains publicly opposed to changing the backstop.
The UK is due to leave the EU at 23:00 GMT on Friday 29 March, when the two-year time limit on withdrawal negotiations enforced by the Article 50 process expires.
Some MPs have suggested Britain will need more time to negotiate its exit to avoid crashing out of the EU without a deal.
(Adapted from: BBC)