One person was killed and three others were injured Sunday after at least two explosions rocked a Japanese city, authorities said.
Broadcaster NHK reported that blasts took place at two locations in Utsunomiya. One of the locations was in a parking lot near a city park.
Helicopter footage showed two burned-out cars side-by-side in a parking lot. It was not immediately clear what connection they had to the incident.
The broadcaster reported that a camera at its station picked up the sound of three explosions at approximately 11:30 a.m. Sunday (10:30 p.m. ET Saturday). The explosions occurred in a span of approximately one minute and 15 seconds.
A man who was in the park at the time of the blasts told NHK that he heard a loud noise and smelled gunpowder. The witness added that he saw three people on the ground.
Utsunomiya, which has a population of approximately 500,000 people is located approximately 70 miles north of Tokyo.