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

Greenland must make its own decisions about independence from Denmark, Prime Minister Mette Frederiksen told President-elect Trump in a Wednesday phone call. The big picture: Trump, since his first term, has repeatedly floated the idea of the U.S. buying Greenland even though the island's leaders have said it is not for sale.