The BBC reports:
Parliament must vote on whether the UK can start the process of leaving the EU, the High Court has ruled. This means the government cannot trigger Article 50 of the Lisbon Treaty – beginning formal exit-negotiations with the EU – on its own.
Theresa May says the referendum – and existing ministerial powers – mean MPs do not need to vote, but campaigners called this unconstitutional. The government is appealing, with a further hearing expected next month.
A statement is to be made to MPs on Monday but the prime minister’s official spokesman said the government had “no intention of letting” the judgement “derail Article 50 or the timetable we have set out. We are determined to continue with our plan”.
Labour leader Jeremy Corbyn urged the government “to bring its negotiating terms to Parliament without delay”, adding that “there must be transparency and accountability to Parliament on the terms of Brexit”.
UKIP leader Nigel Farage said he feared a “betrayal” of the 51.9% of voters who backed leaving the EU in June’s referendum and voiced concern at the prospect of a “half Brexit”.