Golden monkeys seen in central China's Shennongjia

Golden monkeys are seen in the woods at Dalongtan Golden Monkey Research Center in Shennongjia, central China's Hubei Province, Nov. 12, 2017.

A golden monkey is seen at Dalongtan Golden Monkey Research Center in Shennongjia, central China's Hubei Province, Nov. 12, 2017.

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(Xinhua/Huang Xiaohai)

Officials from the European Union (EU) and Finland have voiced concerns after the White House said it has been discussing "a range of options" to acquire Greenland, including the use of the military.

EU foreign policy chief Kaja Kallas told a press briefing in Cairo on Thursday that the message from the U.S. is "extremely concerning," and "not really helping the stability of the world."

Kallas called on all parties to stick to international law, adding that relevant response measures has been discussed among EU members.

"The international law is very clear, and we have to stick to it. It is clear that it is the only thing that protects smaller countries, and that is why it is in the interest of all of us. And we discussed this today, as well, that we uphold the international law on all levels," she said.

Finnish Foreign Minister Elina Valtonen on Thursday described recent remarks by U.S. President Donald Trump and members of his administration on Greenland as "worrying," while reiterating Finland's support for Denmark and Greenland's right to self-determination.

"Finland and the other Nordic countries have exceptional expertise in Arctic conditions, and we are happy to make use of that together with our North Atlantic Treaty Organization (NATO) allies to strengthen Arctic security, but it cannot be done by threatening allies," she said at a press conference at Finnish parliament after an extraordinary meeting of the parliamentary Foreign Affairs Committee.

Johannes Koskinen, chair of the Foreign Affairs Committee, said it was "unprecedented" for threats of violence to be made within NATO against another member in connection with seizing territory, adding that such threats run counter to the United Nations Charter and that their inconsistency with international law should be underscored at all levels.