British MPs have rejected the chance to back the UK Prime Minister's current strategy for leaving the European Union.
The House of Commons voted against her tactic of returning to Brussels for more talks on the Irish border.
Beforehand, ministers said a defeat would undermine the UK's chances of securing concessions on the so-called "backstop."
Labour leader Jeremy Corbyn says it's another embarrassing defeat for Theresa May.
She cannot keep on running down the clock
Meanwhile, the Tánaiste says it's incredible UK politicians have let Brexit come to this.
Simon Coveney told an Oireachtas committee the pressure is on London to come up with a solution to the current impasse.
He also hit out at British politicians for letting things get to this late stage without a deal: