Ukrainian immolated during drone attack

Reconnaissance and FPV drone footage released by Russian sources captures an attack on a Ukrainian defensive position in the Zaporizhzhia region of Ukraine. From the FPV drone’s initial perspective, the attack doesn’t appear particularly successful. It looks like the drone simply strikes a trench wall covered with camouflage netting. However, when the reconnaissance drone perspective is shown, we see a Ukrainian soldier running through the trench, completely engulfed in flames. While it's impossible to tell from the initial perspective of the attacking drone, this tells us that the explosion likely hit some sort of fuel inside of the trench. This likely caused a secondary flash explosion, which fully immolated the Ukrainian soldier, and the defensive position where he was located.