NATO requires unanimous approval of its existing members to add new ones, but Erdogan’s government has said it would only agree to admit Sweden if the country met its conditions.

Turkey is demanding the extradition of alleged PKK militants as well as some followers of Fethullah Gulen, the Muslim cleric accused of the 2016 attempted coup.

In December, the Swedish Supreme Court said the country cannot extradite Bulent Kenes, the former editor-in-chief of a newspaper linked to Gulen, angering Turkey.

Turkey also strongly condemned far-right activist Rasmus Paludan’s burning of the Quran last weekend in Stockholm, which he repeated in Copenhagen Friday.

In a separate advisory, the ministry also urged Turkish citizens to be vigilant in the United States in case of protests in response to the fatal beating by Memphis, Tennessee, police of Tyre Nichols, an unarmed Black man.

The Swedish Foreign Ministry said in a message on its website that Sweden’s embassy in Ankara remains closed to the public and visitors to the country’s consulate general in Istanbul are “requested to exercise vigilance.”