Ukraine carried out a massive drone strike at airbases across Russia on Sunday, claiming to have destroyed dozens of aircraft. There are also indications that Russia's Northern Fleet headquarters, home of Russian nuclear submarines, was attacked as well. Overall, the attack was clearly aimed at Russia's most prized strategic aerial assets, which cannot be replaced quickly in any manner and doing so at all would be extremely expensive.

"The Security Service of Ukraine is conducting a large-scale special operation to destroy bomber aircraft in the rear of the Russian Federation," the Ukrainian Armed Forces General Staff stated on Telegram. "SBU drones have hit more than 40 aircraft, including A-50, Tu-95 and Tu-22 M3, causing damage of over $2 billion."

The operation, codenamed "Web," targeted four key Russian airbases: Belaya, Diaghilevo, Olenya and Ivanovo, the Kyiv Post reported.

There was no immediate response from Russian officials.

While The War Zone cannot independently verify these claims, video has emerged showing Russian bombers being struck by drones. We have geolocated the video to show that the attack was on the Olenya base, even though it was widely reported as the Belaya Air Base in Irkutsk.

Multiple videos show that the attacks apparently came from first-person view (FPV) drones launched from trucks parked nearby.

The Russian air base in Olenegorsk, Murmansk, was also attacked.

Explosions and flames were observed at Russia's Northern Fleet headquarters in Murmansk. It is home to some of Russia's most capable submarines, like the Yasen-M class nuclear-powered cruise missile carrying Kazan.

Russian officials denied that the Northern Fleet headquarters was attacked.

"The information about explosions in Severomorsk, which is being spread on social networks, does not correspond to reality," the head of the city said, according to the Russian Operation Z Telegram channel. "The situation is currently stable. No threats have been recorded. Do not panic and trust only verified sources of information!"

As all of this was taking place, the Ukrainian Armed Forces General Staff said Russia conducted one of its biggest attacks of the war, launching 472 drones and seven ballistic and cruise missiles across the country. Ukraine says it "neutralised" 385 aerial targets.