At least three people were killed when two boats collided in the Seto Inland Sea in western Japan on Sunday, according to local media.
A pleasure boat collided with a tugboat early in the morning, Kyodo News reported.
The tugboat captain made an emergency call around 5:45 a.m. local time, the local fire department said, adding that four people were recovered from the pleasure boat, but two men and a woman died, and the fourth suffered minor injuries.
The pleasure boat sank after colliding with the 16-meter-long, 19-ton tugboat off Yamaguchi province.
A dense fog advisory was issued for the prefecture on Sunday morning, said the news agency.