The death toll from Sunday’s boat accident off South Korea’s Incheon coast rose to 13, the South Korean coast guard said.
Two people were still missing as of 1 pm (0400 GMT), the Coast Guard said.
The Coast Guard said earlier that seven people were killed when a South Korean fishing vessel chartered a ship and drowned, adding that two people were missing.
According to local media, the 9.77-tonne vessel, carrying a crew of two and 20 passengers, crashed into a 336-ton tanker in waters near Yeongheong Island, west of Seoul, at about 06:12 am (local time) On Sunday morning.
South Korean authorities have mobilized four helicopters and 14 boats to carry out the rescue operation.