British Prime Minister Boris Johnson has warned that a no-deal Brexit is now a "very likely" outcome as a trade deal with the European Union remained in a "serious situation" just under two weeks before the December 31 deadline for the end of the transition period.

The negotiators on both sides resumed discussions on Friday but after a phone call with European Commission President Ursula von der Leyen on Thursday night, Johnson declared that a deal remains out of reach unless the EU is willing to change its stance significantly.