CNN video shows Ukrainian air defenses intercepting a Russian attack over Kyiv on Sunday morning. CNN Kyiv —

Poland scrambled fighter jets in its airspace early Sunday, its armed forces said, as neighboring Ukraine came under heavy bombardment from Russian missiles and drones.

At least three people were killed in Kyiv during the overnight attacks, officials said, and drones were still being shot down over the Ukrainian capital on Sunday morning.

Across the border in Poland, already on alert after recent Russian drone incursions over its territory, military aircraft were activated to secure its airspace.

“Fighter pairs on duty have been scrambled, and ground-based air defense and radar reconnaissance systems have been placed on high alert,” Poland’s Operational Command of the

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