UK Prime Minister Boris Johnson will fly back to the UK after his speech at the United Nations General Assembly, a government source told CNN.
There is no information yet if and when he may speak in the House of Commons on Wednesday.
Johnson said he would abide by the historic judgement and Parliament “will come back” as he was cornered on a chaotic visit to the United Nations in New York.
But as calls mounted back in the UK for him to quit, he said he "strongly disagrees" with any suggestion he should apologise.
Britain’s highest court dealt a serious blow to Johnson, ruling that his controversial decision to suspend Parliament was unlawful, in a landmark judgment that will have immediate implications for Britain’s departure from the European Union.