Boris Johnson speaks at the United Nations Climate Action Summit at UN headquarters

Boris Johnson is returning the UK to face urgent questions in parliament after the Supreme Court declared his government unlawfully shut it down for five weeks.

The prime minister was forced to cut short his trip to the UN General Assembly in New York to attend the House of Commons on Wednesday.

Labour leader Jeremy Corbyn called for Mr Johnson to “consider his position” following the landmark decision, while Lib Dem leader Jo Swinson said he was “not fit” to be PM.

Speaking in New York, the prime minister said his government will “respect” the court verdict and added that “of course parliament will come back”.

Downing Street confirmed that he had spoken to the Queen by phone but refused to say whether he had apologised for advising her to prorogue parliament.

It was also reported that Jacob Rees-Mogg, the leader of the House, had described the ruling as a “constitutional coup”.