Lawmakers rejected Prime Minister Theresa May's Brexit deal for a third time on Friday, sounding its probable death knell and leaving Britain's withdrawal from the European Union in turmoil on the very day it was supposed to quit the bloc.
The decision to reject a stripped-down version of May's divorce deal has left it totally unclear how, when or even whether Britain will leave the EU, and plunges the three-year Brexit crisis to a deeper level of uncertainty.
"I fear we are reaching the limits of this process in this House," May told parliament after the defeat. "The implications of the House's decision are grave."
Within minutes of the vote - which took place as thousands of Brexit supporters protested outside parliament - European Council President Donald Tusk said EU leaders would meet on April 10 to discuss Britain's departure from the bloc.
A succession of European leaders said there was a very real chance Britain would now leave without a deal, a scenario that businesses fear would cause chaos for the world's fifth-biggest economy.
White House national security adviser John Bolton told Reuters that President Donald Trump sympathized with May, and restated that the United States was keen to sign a trade deal with Britain once it was no longer in the EU.
May had framed the vote as the last opportunity to ensure Britain actually left the EU, making a passionate plea to lawmakers to put aside party differences and strongly-held beliefs.
But in a special sitting of parliament, they voted 344-286 against the EU Withdrawal Agreement, agreed after two years of tortuous negotiations with the bloc.
"The legal default now is that the United Kingdom is due to leave the European Union on April 12," May said.
She cautioned that any further delay to Brexit would probably be a long one beyond the current deadline, and would mean Britain holding elections to the European Parliament.
The vote leaves her Brexit strategy in tatters. With no majority in parliament for any Brexit option so far, it is unclear what May will now do. Options include asking the EU for a long delay, parliament forcing an election, or a "no-deal" exit.
Britain now has under two weeks to convince the 27 members of the EU that it has an alternative path out of the impasse, or see itself cast out of the bloc on April 12 with no deal on post-Brexit ties with its largest trading ally.
French President Emmanuel Macron, speaking as parliament voted, said the EU needed to accelerate no-deal planning and Austrian Chancellor Sebastian Kurz said that unless Britain came up with a plan, there would be a "hard" Brexit.
May's deal had twice been rejected by huge margins this year and, although she was able to win over many Conservative rebels, a hard core of eurosceptics, who see "no-deal" as the best option...