Negotiations for a post-Brexit trade deal continue overnight Saturday ahead of a deadline for a decision on whether to press on, but a UK government warned Brussels’ offer still falls short.

“Talks are continuing overnight, but as things stand the offer on the table from the EU remains unacceptable,” a UK government source said.

“The prime minister will leave no stone unturned in this process, but he is absolutely clear: any agreement must be fair and respect the fundamental position that the UK will be a sovereign nation in three weeks’ time.”