Ten people have been reported dead and an unknown number of others are missing after a fishing charter boat capsized off the southeastern South Korean coast late Saturday night.
The South Korean coast guard said the 9-ton boat named Dolphin was found Sunday morning near the resort island of Jeju, hours after it left the nearby island of Chuja and lost radio contact.
The coast guard said three people have been rescued and flown to a nearby hospital.
One survivor told Yonhap news agency that the boat capsized "in an instant" due to strong waves. He said he and other survivors climbed on top of the capsized boat and held on for more than 10 hours before being rescued.
A manifest showed 22 passengers traveling on the Dolphin, but at least four of those listed were not onboard at the time of the accident, and one of the survivors was not on the list. Dozens of military and civilian ships are searching the surrounding area for more survivors.
Yonhap says South Korean President Park Geun-hye has ordered officials to "do everything possible for the search and rescue of the missing."
South Korea is still mourning last year's sinking of the Sewol ferry off the southern coast that killed 300 passengers, many of them school children. Critics blamed lax safety measures and oversight for the tragedy.
Some material for this report came from AP and AFP.