Warsaw, Poland — Poland said Wednesday that multiple Russian drones entered its territory over the course of several hours and were shot down with help from NATO allies, describing the incursion as an “act of aggression” carried out during a wave of Russian strikes on Ukraine.

The incursion was the first time alliance planes had engaged enemy targets in NATO airspace. Poland’s leader called it “a large-scale provocation.”

The drone barrage forced Polish airports to close. Karol Nawrocki, the president, called it “an unprecedented moment in the history of NATO and Poland.” In a speech to parliament, Mr Tusk called for the “full mobilisation” of NATO members,

Nineteen Russian drones were recorded crossing into Poland on Sept. 10, in what became the largest attack on a NATO member state since the start of Moscow's all-out war against Ukraine.

Polish authorities confirmed that two drones entered Poland’s airspace on Wednesday night. Polish national forces closely monitored and controlled the incidents in Poland. The origin of the drones has not been specified.

Poland shot down drones that entered its airspace on Wednesday, the first time a member of NATO is known to have fired shots during Russia's war in Ukraine. Here are some reactions to the situation from leading politicians.

Spurred by belligerent Russia and the war in Ukraine, Poland has raced to build the largest European army in NATO. As Western officials warn about an open clash with Moscow within the next five years,

The UN Security Council announced it would hold an emergency meeting Friday to discuss discuss violations of Poland's airspace, a day after Warsaw accused Moscow of carrying out a drone