British Prime Minister Theresa May's government suffered a defeat in Parliament on Tuesday when lawmakers who oppose leaving the European Union without an accord won a vote that created a new obstacle to a no-deal Brexit.

The 303 to 296 defeat means that the government needs explicit parliamentary approval to leave the EU without a deal before it can use certain powers relating to taxation law.

The defeat highlights May's weak position as leader of a minority government, a divided party, and a critical Parliament just days before she is due to hold a pivotal vote on whether to approve the Brexit deal she has negotiated with the EU.