Multiple blasts in a park located around Utsunomiya, a Japan city, have killed at least one person and injured at least two, emergency services say.
According to the BBC, the explosions took place almost simultaneously at about 11:30 local time (02:30 GMT) in the city in Tochigi prefecture, north of Tokyo.
Tokyo-based broadcaster NHK World broadcast images showing two burnt-out cars in a parking area.
It was not immediately clear what had caused the explosions.
Kyodo news agency said a festival celebrating traditional culture had been taking place in a nearby park, where at least one of the explosions was reported to have taken place.
A man who was in the park at the time told NHK that he heard “a big sound” and smelled gunpowder.
The broadcaster also reported that a video camera at nearby Utsunomiya station recorded the sound of three explosions in quick succession – at 11:31, 11:32, and a third “bigger sound” 15 seconds later.
Photographs showed a splintered and broken bench in the area of one of the blasts, while others posted to social media appeared to show a column of black smoke rising from the area.
Police have cordoned off the area.