The EUโs chief negotiator will talk with European ambassadors later today over Franceโs concerns of the terms of a trade deal with the UK. Mr Barnier has been in London to hold last minute talks with David Frost to strike a deal before the UK leaves the EU on December 31.
The meeting will take place at 7:30am today, with Mr Barnier expected to give an online briefing to Brusselsโ ambassadors.
The negotiator is said to reassure diplomats he will not cave to the UKโs demands and will strike a fair deal.
It comes as EU diplomats have claimed the European Commission has received a โserious warningโ that it was making dangerous concessions on redline issues, according to The Telegraph.
France is concerned that Mr Barnier is giving too much ground on fishing and state aid contributions, which they claimed โrisked dividing member statesโ.
READ MORE:ย Brexit fisheries row: EU branded โselfishโ as Brussels bloc told to โbudgeโ in tense talks
French President Emmanuel Macron has been vocal about maintaining EU access to British waters, as proposed changes to shares hit France hard.
Speaking yesterday, Mr Macron threatened he would vote down a Brexit deal that gives too much access to British waters away.
He said: โThe preservation of our fishermen in British waters is an essential condition.
โFrance will not allow an agreement that does not respect our interests.โ
Other EU members have questioned whether the Commission, headed by Ursula von der Leyen, is willing to agree on any deal.
A European diplomat said to the Telegraph: โThere is a growing unease among member states that Commission President Ursula von der Leyen, egged on by Germany or not, is doingย whatever it takes to get a deal.โ
Mrs von der Leyen said the UK and EU are discussing a level playing field system that would ensure no regression on standards for environment laws and labour rights among other issues.
She added: โWe will see how the next days will go, we want an agreement, but not at any priceโ.
It comes as British MPs have warned the UK is still not ready for Brexit, with just four weeks until the transition period ends.
The Commons public accounts committee, a cross-party MP group, said: โThere are still significant risks to the country being ready for the end of the transition period on December 31, 2020, but Government still only seems to be taking limited responsibility for that readiness.
โIndustry bodies have said that Government has not provided key information needed by businesses to prepare, such as detailed guidance on how to apply for simplified customs procedures.โ
Prime Minister Boris Johnson has said the UK will โprosperโ regardless of a deal with the EU, but has added he remains hopeful one can be agreed.