Secretary of State Michael R. Pompeo spoke with Republic of Cyprus (ROC) President Nicos Anastasiades on September 1 and informed Anastasiades of his decision to remove blocks for one year on the sale or transfer of "non-lethal defence articles and defence services" from October 1, the State Department said in a press release.

Pompeo also "reaffirmed US support for a comprehensive settlement to reunify the island", according to State Department spokeswoman Morgan Ortagus.

For his part, Anastasiades welcomed the lifting of the embargo, which the US imposed in 1987 in the hope that it could encourage the reunification of the island. He said the "positive" development "reinforce[d] the bilateral security relationship" between the two countries.

The US decision drew immediate condemnation from Ankara.

"It poisons the peace and stability environment in the region," the Turkish foreign ministry said, adding it does "not comply with the spirit of alliance" between the US and Turkey.

If Washington did not reverse course, the ministry said, "Turkey, as a guarantor country, will take the necessary decisive counter steps to guarantee the security of the Turkish Cypriot people, in line with its legal and historical responsibilities."