House of Commons Speaker John Bercow has said the British parliament is preparing to resume tomorrow morning.
His comments follow the Supreme Court's unanimous ruling that Boris Johnson's decision to suspend parliament for five weeks was unlawful.
Parliament had been prorogued on 9 September and MPs were not due to sit again until the Queen's speech on 14 October.
Speaking in front of the Palace of Westminster, Mr Bercow said: "The citizens of the UK are entitled to expect that parliament does discharge its core functions, that it is in a position to scrutinise the executive, to hold ministers to account and to legislate if it chooses.
"In the light of that explicit judgment, I have instructed the house authorities to prepare not for the recall - the prorogation was unlawful and is void - to prepare for the resumption of the business of the House of Commons.
"Specifically I have instructed the house authorities to undertake such steps as are necessary to ensure that the House of Commons sits tomorrow, that it does so at 11.30."
Mr Bercow added: "I have contacted party leaders and, where that has not been possible, senior representatives of the parties in order to inform them of my thinking and to prepare the way for the House of Commons to do its work."
Mr Johnson is in New York at the UN so there will not be a Prime Minister's Questions, however Mr Bercow said there would be urgent questions and ministerial statements.
Labour leader Jeremy Corbyn has brought forward his party conference speech to today so that he can attend parliament tomorrow.
STATEMENT: The House service's primary responsibility is to ensure the smooth running of parliamentary business. We are considering the implications of the Supreme Court's judgment for Parliament and will provide further information as soon as we can.— Commons Press Office (@HoCPress) September 24, 2019