Polish leaders said multiple Russian drones entered and were shot down over its territory with help from Nato allies - describing the incident as an "act of aggression" carried out during a wave of Russian strikes on Ukraine.Several European leaders said they believe Russia is intentionally escalating the war in Ukraine, and Nato is discussing the incident in a meeting.

Polish leaders said multiple Russian drones entered and were shot down over its territory with help from Nato allies - describing the incident as an "act of aggression" carried out during a wave of Russian strikes on Ukraine.Several European leaders said they believe Russia is intentionally escalating the war in Ukraine, and Nato is discussing the incident in a meeting.