OSAKA -- Two explosions ripped through a first floor restroom in Osaka City Hall Monday afternoon, forcing the evacuation of some 3,000 employees for about an hour.
No injuries were reported from the blasts, which occurred just before 4 p.m. in the men's toilet. Police investigators discovered five gas canisters measuring some 7 cm in diameter and 20 cm in height and one can of paint thinner in the men's room after the blasts.
Investigators said a plastic bottle containing what appeared to be paint thinner along with a can of lighter oil were also left there.