The UK's deadlocked Parliament failed to agree on a new blueprint for Brexit, rejecting all the options that were put forward to replace Theresa May's unpopular deal.
The House of Commons voted on four different policies but none of them won a majority, pushing Britain's messy divorce from the European Union deeper into crisis. The pound fell.
With just 11 days left until the UK is due to exit the bloc of 28 nations, the stalemate leaves the Prime Minister with a crucial decision over what to do next. She will convene a meeting of her Cabinet tomorrow, likely to last five hours, to hash out a plan.
The options in front of May are stacked with danger. She could try again to get her own deal through in a parliamentary vote, despite it being rejected on three earlier occasions; she could seek a long delay to Brexit, which would enrage many eurosceptics and could provoke resignations; or she could call for a general election or even a new referendum and let voters decide.
In a dramatic sign of how high tensions are running high in Parliament, one of the authors of a motion that was rejected resigned from the Conservative Party in the chamber.