'Russian bombers are burning en masse' — Ukraine's SBU drones hit 'more than 40' aircraft in mass attack, source claims

An operation by Ukraine's Security Service (SBU) has hit "more than 40" Russian bombers at air bases "in the rear of the Russian Federation," a source in the agency told the Kyiv Independent on June 1.

"Enemy strategic bombers are burning en masse in Russia — this is the result of a special operation by the SBU," the source said.

Video provided by the source shows what appears to be a row of heavy bomber aircraft on fire at an undisclosed location.