Sir Keir Starmer told Donald Trump in a phone call on Sunday that it would be "wrong" to apply tariffs to allies opposing a US takeover of Greenland, No 10 has said, BBC reported. 

It is the first time the two leaders have spoken since the US president vowed to impose a 10% levy on goods imported from eight European nations, including the UK, until a deal was reached over the US to purchase the island.

The White House has intensified calls for the US to take control of the autonomous Danish territory on national security grounds, alarming both European allies and those living on the island, according to BBC.