Britain's weakened Prime Minister Theresa May headed for Brussels to lobby European leaders for help after she survived a parliamentary mutiny that highlighted the deadlock over Brexit.
Ms May won the backing of 200 Conservative Party MPs versus 117 against, in a secret ballot that deepened divisions just weeks before Parliament needs to approve a deal to prevent a disorderly exit from the EU.
In Britain's biggest decision for decades, Brexit has split the nation and will shape the future of its $2.8 trillion economy, including London's status as a global financial hub.
However, European leaders look unlikely to offer immediate support, with a draft statement saying they were merely "ready to examine" whether further assurance can be given.
The six-point EU document said any assurances would not "change or contradict" the legally-binding withdrawal agreement struck last month after two years of negotiations.