Poland gathered its NATO allies for urgent talks on Wednesday, Prime Minister Donald Tusk said, after Russian drones flew into Polish airspace in an overnight attack on Ukraine.

Tusk denounced the "large-scale provocation", saying Poland had identified 19 violations of its airspace and shot down at least three drones after scrambling aircraft alongside allies, adding that no one was harmed.

Russian drones and missiles have entered the airspace of NATO members -- including Poland -- several times during Russia's three-and-a-half-year war, but a NATO country has never attempted to shoot them down.

Tusk said he had invoked NATO's Article 4 under which any member can call urgent talks when it feels its "territorial integrity, political independence or security" are at risk -- only the eight

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