LONDON — The top U.S. diplomat in Denmark was summoned for a meeting at the country’s foreign ministry, Foreign Minister Lars Lokke Rasmussen confirmed on Wednesday, over alleged pro-American influence operations in Greenland.

“We are aware that foreign actors continue to show an interest in Greenland and its position in the Kingdom of Denmark,” Rasmussen said in a statement. “It is therefore not surprising if we experience outside attempts to influence the future of the kingdom in the time ahead.

“Any attempt to interfere in the internal affairs of the kingdom will of course be unacceptable,” Rasmussen said. “In that light, I have asked the Ministry of Foreign Affairs to summon the U.S. chargé d’affaires for a meeting at the ministry.”

“The cooperation between the governments of Denmark and Greenland is close and based on mutual trust, just as there is close cooperation and dialogue between the relevant Greenlandic and Danish authorities,” Rasmussen added.

The meeting came after Danish public broadcaster DR published a report in which unnamed government and security sources said that three Americans with connections to President Donald Trump were conducting influence operations in the semi-autonomous Danish territory.

DR said it was unclear whether the Americans were acting on their own initiative or under orders from others.

Trump has repeatedly expressed his desire to take control of Greenland, framing the huge Arctic territory as vital for American national security. The president has proposed purchasing the island and refused to rule out taking military action to take control of it.

Politicians in Denmark and Greenland have said that the island is not for sale.