Ukraine has launched a major drone attack on the Morosovsk Airfield in Russia, about 150 miles from the front lines, according to an assessment of satellite imagery.

The airfield is located in the Rostov region, and has been the staging post for Russian bombings on the frontline since the beginning of the full-scale invasion in 2022. It houses dozens of Su-27 and Su-34 fighter-bombers, key weapons in the war.

The operation involved at least 70 drones striking the base on Thursday, Kyrylo Budanov, the head of Ukraine’s militray intelligence, told The War Zone, though it was unclear if any aircraft had been destoyed.

The attack is the second at Morosovsk in recent months. An attack on April 5 reportedly destroyed six Russian warplanes.

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