A university student died after playing an online shooting game for about 12 hours in a “PC bang,” or Internet parlor, police said.

On Monday afternoon in a PC bang in the southeastern city of Ulsan, the collegian, only identified as Moon, suddenly fell to the ground and was rushed to a hospital but he was declared dead upon arrival, police said.

The 19-year-old collegian went to the PC bang at around 2 a.m., stopped by his home briefly at 10:30 a.m., to eat, and returned to the PC bang.

His families and friends told the police that he habitually played the online shooting game.

Police are investigating the exact cause of death.