The Japan Coast Guard is warning the public to take precautions after a series of boat accidents during summer fireworks festivals in the Seto Inland Sea.

Within the area covered by the JCG's 6th regional headquarters, based in the city of Hiroshima, there have been accidents in which boats carrying spectators for the fireworks ran over oyster cultivation rafts, according to the headquarters.

During a fireworks event July 19, some 80 boats and ferries gathered around the fireworks barge in Kure Port in Kure, Hiroshima Prefecture. Four ships were deployed on patrol.