An unidentified man burst into flames while waiting outside a train station in Sweden, leaving police flummoxed, the Göteborgs-Posten reported.
Witnesses said the man was standing outside a music shop at the Gothenberg central train station around 10:30 p.m. Sunday, when he suddenly caught on fire.
"He just stood there burning outside the shop," a witness told the paper. "After a while he started screaming. There were a few people about but they just watched him. I ran up to him, tore my coat off and managed to put the fire out together with another guy."
The man, who sustained serious injuries, was taken to Gothenburg's Sahlgrenska hospital, where he was sedated.
Police have been at the hospital since the incident trying to piece together what happened.
"All we know is that it's a man. We have no knowledge of his identity, nor of his age or any motive or even the circumstances of the incident," Asa Anderson, a police officer, told the newspaper.
The man has not been in a condition to speak, said the officer.
"He is sedated and will probably remain under for another couple of weeks."
Police do not suspect foul play.