The UK and the European Union are said to be on the cusp of striking a narrow trade agreement, moving away from a chaotic finale to the Brexit split.
There was no official confirmation of a deal but a news conference is expected in London on Thursday.
Sources in London and Brussels have said that an agreement was close as the British Prime Minister Boris Johnson held a late-night conference call with his Cabinet of senior ministers, and negotiators in Brussels pored over legal trade texts.
If the deal includes zero-tariff and zero-quota, it would safeguard nearly US$1 trillion in annual trade, and support the peace process in Northern Ireland.
This is a priority for the US President-elect Joe Biden, who had warned Johnson that he must uphold the 1998 Good Friday agreement.
The UK formally left the bloc on January 31 but has since been in a transition period under which rules on trade, travel and business remained unchanged.


Kuwait and Qatar thwart fresh wave of Iranian attacks
After a week of war, Trump demands Iran's 'unconditional surrender'
Ex-rapper's party set to sweep Nepal election
Israeli airforce pounds Beirut, Lebanon death toll rises
US releases Epstein-related FBI interviews mentioning Trump
Hezbollah warns Israeli residents to evacuate towns near border
US House rejects war powers resolution, backs Trump on Iran war
Saudi Arabia, Qatar, Kuwait intercept drones targeting territory
