Jul 15, 7:25 AM (ET)

BLACKSVILLE, W.Va. (AP) - Warning: smoking in the toilet can be dangerous. A portable toilet exploded Tuesday after a man who was inside it lit a cigarette.

Emergency workers said the man was not severely injured and drove himself to Clay-Battelle Community Health Center. He was later transferred to Ruby Memorial Hospital. His name and condition were not available Wednesday.

The explosion, which occurred in Blacksville, resulted from a buildup of methane gas inside the portable toilet. The methane did not "take too kindly" to the lit cigarette, said a spokeswoman for Monongalia Emergency Medical Services.