Greenland’s prime minister said a planned visit to the island by US officials, including second lady Usha Vance, is “highly aggressive,” plunging relations to a new low after President Donald Trump vowed to annex the autonomous Danish territory.

To do so, the administration invoked an obscure wartime authority from 1798 called the Alien Enemies Act and secured the agreement of El Salvador’s strongman leader, Nayib Bukele. Once in El Salvador, the migrants were put in the country’s prison system, whose conditions, according to many experts, constitute human rights abuses.

Greenland's prime minister said an upcoming visit from Second Lady Usha Vance and members of the Trump administration is a "provocation."