London, Sep 25 (IANS): British MPs and peers will return to Parliament on Wednesday, a day after the historic Supreme Court that said its suspension by Prime Minister Boris Johnson for five weeks in the lead-up to a Brexit deadline, was unlawful.

In reaction to Tuesday's unanimous ruling, Johnson was returning early from the UN General Assembly (UNGA) in New York, while the opposition Labour Party has cut its conference short, the BBC reported.

Johnson, who has faced calls to resign, has said he "profoundly disagreed" with the decision but would respect it.

The Prime Minister, who was attending the UNGA in New York, spoke to the Queen after the ruling, a senior government official said, although no details of the conversation have been revealed.

He also chaired a 30-minute phone call with his cabinet, the official added.

A source told the BBC the Leader of the Commons, Jacob Rees-Mogg, told cabinet ministers on the call that the action by the court had amounted to a "constitutional coup".

On August 28, Johnson had ordered the suspension for five weeks, saying it was to allow a Queen's Speech to outline his new Brexit policies.

The shutdown began on September 10, the BBC reported.

Tuesday's ruling came after the three-day hearing at the Supreme Court dealt with two appeals - one from campaigner and businesswoman Gina Miller, the second from the government.