Labour has said it is “more important than ever” that Parliament is recalled after the government published its no-deal Brexit assessment.
Shadow Brexit secretary Sir Keir Starmer said the Yellowhammer document confirms there are “severe risks” if the UK leaves the EU without a deal.
MPs forced the government to release the file before Parliament was suspended – or prorogued – on Tuesday.
The government said no-deal mitigations would be published in due course.
Sir Keir said recalling Parliament would allow MPs “the opportunity to scrutinise these documents and take all steps necessary to stop no-deal”.
His comments followed a ruling by Scotland’s highest civil court on Wednesday that the government’s proroguing of Parliament was unlawful.
The Yellowhammer file, which is redacted in parts and almost identical to a version leaked to the Sunday Times last month, says a no-deal Brexit could lead to among other things a “decrease” in certain types of fresh food and “shorter supply” of key ingredients and “disruption lasting up to six months” potentially affecting medicines and medical supplies.