The Danish foreign minister expressed openness to working more closely with the U.S. to ensure its interests in the region are addressed after President-elect Donald Trump said he wants to buy the Danish territory of Greenland—but the foreign minister continued to cast doubt on Trump’s idea to acquire the island,

U.S. President-elect Donald Trump says he wants to make Greenland a part of the United States and does not rule out using military or economic power to get Denmark to hand it over.

President-elect Donald Trump Tuesday threatened to place new tariffs on imports from Denmark unless the country gives up control of Greenland, news that dented the stocks of some of Denmark’s most important companies and underscored Trump’s focus on geopolitical competition.