Videos and photos posted show the vessel listing heavily before sinking.
SAR is actively underway right now.
Bangkok, Thailand: Thai authorities said that a Royal Thai Navy warship sank in severe weather early Monday, leaving 33 of its crew of 106 sailors missing in stormy seas in the Gulf of Thailand.
Authorities said that three rescued sailors were in critical condition, and a search operation was underway for the missing crew.
Strong winds tilted the 252-foot (76.8-meter) long corvette HTMS Sukhothai, allowing seawater to enter an exhaust pipe and subsequently shut down the ship’s electrical system, a Thai navy statement said.
The electrical shutdown caused the ship’s main power systems to fail, leaving the crew unable to maneuver or pump out seawater that had entered its hull, it said.
HTMS Sukhothai (FS-442) (Thai: เรือหลวงสุโขทัย, RTGS: Su Khotai) was a corvette of the Ratanakosin class belonging to the Royal Thai Navy. The ship was named after the first king of the Kingdom of Sukhothai, capital city of Sukhothai in present-day north-central Thailand.
The ship sank after a storm in the Gulf of Thailand on 18 December 2022. She developed a heavy list after electrical systems and pumps failed due to flooding. The failures were caused by sea water entering an exhaust port in heavy seas, which led to a short circuit in the ship’s electrical system. Sailors have been rescued from the water, however 33 crew members out of 106 were missing as of 19 December.