NATO has "heightened vigilance" in the Baltics after what Copenhagen called an intrusion of unwanted drones into Danish airspace, an alliance spokesman said.
The enhanced measures "include multiple intelligence, surveillance and reconnaissance platforms and at least one air defense frigate" in the region west of Russia, alliance spokesman Martin O'Donnell said at a press conference on the night between Saturday and Sunday, September 28.
O'Donnell said top NATO officials "have been in constant contact with Danish leaders" regarding the drone incidents, the latest in a series of violations of the airspace of Alliance member countries.
Mysterious drone sightings across Denmark and Norway since Monday have led to the closure of several airports, with Denmark hinting at possible Russian involvement.
Several NATO countries say Russian fighter jets and drones have violated their airspace in Europe in recent weeks, accusing Moscow of testing the alliance.
However, Moscow on Thursday rejected any suggestion that it was behind the drones, and Foreign Minister Sergei Lavrov warned on Saturday that NATO would risk a "decisive response" if it showed "any aggression against my country".
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