Donald Trump insisted he was serious in his determination to take over Greenland in a fiery telephone call with Denmark’s prime minister, according to senior European officials.

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,

Denmark’s Prime Minister Mette Frederiksen has called the country’s business leaders to a meeting on Thursday after US President-elect Donald Trump last week threatened military or economic action such as tariffs to take control of Greenland.