Pentagon chief Lloyd Austin called the collision of a Russian Su-27 with an American UAV over the Black Sea dangerous, risky and aggressive, CNN reports..

The US will continue to fly and operate wherever international law allows, he said..

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A Russian military aircraft collided with an American reconnaissance drone over the Black Sea, damaging its propeller. US operators forced to sink MQ-9 Reaper in international waters, Pentagon says.

This is the first known instance of physical contact between the Russian and US military since the start of Russia's invasion of Ukraine a year ago, New York Times.