Amateur Siberian stuntman shocks cops with his 'thoughtless' head-first jump from apartment block roof

Named only Sanya - Alexander - he walked away, limping slightly, after his leap which was captured by a friend and has gone viral on the Russian internet. 

Video footage shows him a rooftop as another teenage apparently sets him on fire. The flames ignite on the lower part of his body.

Spectators cheer him as he makes his death defying leap. He evidently wanted to appear like a rocket as he dived, head first, with flames behind him. from the roof of a five storey block at 118 Sotsialisticheskaya Street, in Barnaul, southern Siberia.

Children were among those watching the shocking jump, the video showed. 

Locals called police. The teenager told officers at the scene that this was not his first experience of extreme activities. 

'I am into this kind of extreme things, I have been doing it for several years now,' he said. 

Police warned him of the dangers 'of such thoughtless and hasty actions which can cause grave traumas and fractures'.