Court: Parliament must vote ahead of Brexit trigger

Pound rises sharply by 1 percent against the dollar and the euro after ruling

London's High Court ruled that the British Parliament has to approve the government's plans to exit the European Union before Prime Minister Theresa May can invoke Article 50, the formal process of leaving the EU.

The ruling, against which the government was given the right to appeal to the Supreme Court, threw May's plans to leave the EU into chaos.