A call between President Donald Trump and Denmark Prime Minister Mette Frederiksen about Greenland recently spiraled out of control, according to several officials briefed on the call. The Financial Times first reported Friday on the 45-minute call between Trump and Frederiksen,

Danish Prime Minister Mette Frederiksen said she now understood the need for the island nation to secure its borders as competition for the thawing Arctic regions heats up.

Keir Starmer has been urged to back Denmark in its row with Donald Trump over the future of Greenland. The prime minister will hold talks with his Danish counterpart, Mette Frederiksen, in 10 Downing Street on Tuesday evening.