Life News has released a video of a 24-year-old unsuccessfully attempting to surf a subway train as it rolls out of a station in St. Petersburg.

Identified as Vitaly K., a student from Kazakhstan, the man holds a backpack with one hand as he leaps in between two cars. He reportedly lost his grip as soon as the train entered the tunnel.

"His body had to be retrieved in fragments," a police source told Life News.

The incident occurred at the Prospekt Bolshevikov metro station. It caused at least four stations on that line to shut down for half an hour. The video was taken by a surveillance camera.

Friends of the jumper told Life News that he most likely was attempting to train-surf, an "extreme sport." They ruled out suicide.

"Vitaly was getting ready to leave for America, a good contract was waiting for him there," said Valentin G. "He did website design and made a good living. There was not a single reason for him to die."