Chief Brexit negotiator Michel Barnier says he sees signs off movement on a deal in a tweet Thursday, he said negotiations were in the final stretch with good progress towards an agreement, but UK officials don't seem so optimistic.

One told Reuters that the two sides were still very far apart in key areas that probably includes fishing.

You sources say disagreements remain there, with many other more minor issues still in need off polishing.

Speaking in parliament on Thursday, UK Cabinet Office Minister Michael Gove said London wasn't giving up yet.

Intensive talks are ongoing, with both negotiating teams working day and night to reach a deal.

We're going the extra mile and continue the negotiations to see whether an agreement could be reached.

We will, of course continue to keep parliament informed on our progress.

Time is now very tight.

The European Parliament says it could hold an emergency session in late December if a deal comes together by Monday.

If on agreement comes later, you diplomats say the block might put it in place from January 1st without lawmakers consent.

It'll leaves UK Prime Minister Boris Johnson with a big decision to make.

There's every opportunity that every hope I have that our friends and partners across the channel will will see sense and do a deal very soon.

Now he will have to opt for the narrow deal on offer from the EU or walk away and risk the economic turmoil that many think will be triggered by a no deal exit.