Overnight search and rescue operations are under way to find five missing people after a fishing vessel sank in waters off Yeosu, Jeolla Province, Feb. 9. Yonhap

Search and rescue efforts were under way for the second day Monday after a fishing trawler carrying 14 people on board sank in waters off the southern coast, leaving five people dead and five others missing.

The Coast Guard said it was conducting an around-the-clock search to find the five people still missing, with the help of 21 patrol ships, four aircraft, three Navy ships and 15 private fishing boats.

Authorities were also carrying out search efforts around the sunken ship at 80 meters underwater using Remotely Operated Vehicles (ROV).

On Sunday, the 139-ton vessel suddenly disappeared from radar, before the Coast Guard located the ship hours later in waters 17 kilometers east of the island of Habaek, near Yeosu, some 315 km south of Seoul.

Five Koreans have died, including the ship's 66-year-old captain, while the five missing are three Koreans, one Indonesian and one Vietnamese.

Four other crew members — two Vietnamese and two Indonesians — survived.

The Coast Guard is looking into the cause of the accident as there was no distress call from the fishing trawler. (Yonhap)