The dollar index recovered on the day and was last up 0.2pc just short of 90, but remained on track for a fall of 1pc over the week. It had reached its lowest in more than two years at 89.723 on Thursday.
Dutch health technology firm Philips rose 1.3pc after it agreed to buy U.S. cardiac diagnostics and monitoring firm BioTelemetry in a deal worth $2.8 billion.
While Barnier said the sides were striving at an agreement, he said the 27-nation bloc would not sign a deal that would undercut its cherished single market of 450 million consumers.
"It is a very serious situation. We will test every route to seeking a free trade agreement with the European Union, but we cannot do so at the expense of our national sovereignty," Nick Gibb told Sky News.
Britain and the European Union struck a pessimistic tone in trade talks on Thursday, with a spokesman for Prime Minister Boris Johnson saying it was “very likely” there would be no agreement unless the bloc changed its position “substantially”.
Just over two weeks before Britain finally leaves the bloc’s orbit, European Commission President Ursula von der Leyen was also downbeat, saying it would be “very challenging” to overcome the “big differences” that remained.
The Bank of Japan ends its two-day policy meeting on Friday and is expected to leave rates steady but announce an extension of a package of steps aimed at easing corporate funding strains.
Alphabet’s Google won EU antitrust approval on Thursday for its $2.1 billion bid for Fitbit after agreeing restrictions on how it will use customers’ health related data.
The deal had triggered criticism from privacy advocates on both sides of the Atlantic, consumer organisations and Google rivals about the company’s market power and the use of people’s health data in targeted advertising.
The EU sources said that any agreement that could emerge would produce a "differentiated" system on fishing quotas, but did not expect that to happen by Friday.
"I think that regrettably the chances are more likely that we won't secure an agreement." Asked about the probability of a deal, he said "less than 50pc".
The pound is benefiting from an improvement in the narrative on the chances of a Brexit trade deal this week, almost a year after Britain formally left the European Union.
The United Kingdom will work flat out for a Brexit trade deal and the two sides are in “tunnel” negotiations but if a deal with the European Union is not possible then the country will be prepared, interior minister Priti Patel said on Thursday.
The “tunnel” is a term for an intense final stage of secretive, make-or-break negotiations.
"First of all, the prime minister and the government, we've all been very clear we are not walking away, we will continue to negotiate to get this free-trade agreement," Patel told LBC radio.
Gas emits roughly 50% less CO2 than coal when burned in power plants, but it is associated with leaks of methane, a potent greenhouse gas.
Envoys from the EU's 27 member countries endorsed the deal on Wednesday, which was struck between EU governments and the European Parliament last week.
Castex told parliament that the vaccine campaign in France would then be stepped up in January, with the elderly and other more vulnerable groups coming first in the queue.
"We've just got to make sure that we control our own laws, and control our own waters, and there's a good deal there to be done but if not, WTO/Australia terms it is."
Those companies and others have European head offices in Dublin, and the UK's exit from the EU will change its legal relationship with Ireland, which remains in the Union.
Speaking at a joint news conference with Portugal's Prime Minister Antonio Costa, Macron also said that he would like the integrity of the European single market to be maintained.
The EU's chief executive said on Wednesday she could not say if there would be a trade deal with Britain but there had been progress and the next few days would be critical.