US President Donald Trump on Thursday again tore into Denmark for shunning him.

On Wednesday, “I thought that the Prime Minister’s statement was nasty,” Trump told the press while referring to Danish Prime Minister Mette Frederiksen, Xinhua reported.

“It was an inappropriate statement. All she has to do is say ‘no, we wouldn’t be interested’,” Trump said.

“Because she’s not talking to me, she’s talking to the United States of America. You don’t talk to the United States that way, at least not under me,” he added.

Trump said Greenland had strategic interest for the US, defending his position by saying that previous US Presidents had also floated the idea.

In a stern response, Frederiksen called the idea “absurd,” triggering a backlash from Trump.

Trump later continued the rant on Twitter, blasting Copenhagen for not spending enough on the military as a member of the North Atlantic Treaty Organisation (NATO).

On Tuesday, US President Donald Trump said that he would be putting off a planned meeting with Denmark’s prime minister because she did not want to talk about a possible US purchase of the island of Greenland.

Taking to Twitter, Trump said, “Denmark is a very special country with incredible people but based on Prime Minister Mette Frederiksen’s comments, that she would have no interest in discussing the purchase of Greenland, I will be postponing our meeting scheduled in two weeks for another time”.

Last week, Donald Trump had expressed his interest in buying the world’s biggest island.

In response to Trump, Greenland government said in a statement that, “Greenland is not for sale, and can’t be sold, but Greenland is ready for negotiations to enter collaborations with other countries, including the US”.

Trump had been scheduled to make a state visit to Denmark on Sept. 2 on the invitation of Queen Margrethe II.