Fifteen people were injured on Friday after a man entered a factory in Shizuoka Prefecture in central Japan and attacked workers with a knife while spraying an unknown liquid, local media reported.

An emergency call was received around 4:30 p.m. local time reporting that several people had been stabbed at a Yokohama rubber factory in Mishima City, Shizuoka Prefecture, and that liquid had been sprayed inside the facility, public broadcaster NHK reported, citing local police and fire authorities.