Drones operated by the Security Service of Ukraine (SBU) struck the Kirovske military airfield in Crimea overnight on June 28, the SBU told the Kyiv Independent, APA reports. The attack destroyed Mi-8, Mi-26 and Mi-28 attack helicopters, and a Pantsyr-S1 self-propelled anti-aircraft missile and gun system, the SBU claimed. According to the SBU, Ukraine targeted Russian aviation, air defense systems, as well as ammunition, reconnaissance and attack drones storage facilities. Secondary explosions were heard at the airfield during the night.