Ukraine’s Security Service (SBU) said on Thursday it had obtained a Russian internal document that it claims shows Ukrainian forces were not responsible for a deadly drone strike on a bus carrying Belarusian civilians in Russia’s Bryansk region. According to the SBU, the document – an information report from the monitoring center of the state-run “Safe Region” system – states that no Ukrainian drones were detected in the skies over the Pochep district in Bryansk at the time of the attack.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. The agency said the absence of Ukrainian drones was confirmed by both the duty officer of a radar battalion stationed in Suponevo – a small settlement in Bryansk region used as a location for Russian military radar units – and the duty officer of Russia’s 32nd Division. “Russian special services operation,” said SBU “Therefore, the SBU has grounds to believe that the strike on the bus carrying Belarusian civilians in Russia’s Bryansk region was a special operation by Russian special services,” the agency said in a statement. Deadly strike on Belarusian youth football team Acting Bryansk Region Governor Yegor Kovalchuk said on June 17 that Ukrainian drones had struck a bus transporting a Belarusian youth football team from Gomel to the Black Sea resort city of Gelendzhik. One woman accompanying the group was killed and seven other people were wounded, including five children, according to Russian authorities. Moscow opened a terrorism case over the incident, while the Russian Foreign Ministry called it “another monstrous crime.”