Oil leaking from the wreck of the Sealloyd Arc has washed ashore on several of Thailand’s popular tourist beaches, prompting an emergency response from maritime and environmental authorities.

Officials confirmed that patches of fuel escaped from the sunken cargo vessel and drifted toward coastal areas known for tourism and fishing.

Cleanup crews were deployed to contain and remove the slick, while booms were installed in an effort to limit further spread.

The vessel sank earlier off Thailand’s coast under circumstances that remain under investigation.

Authorities have not reported injuries linked to the incident, but concerns have mounted over potential environmental and economic damage, particularly to marine life and local tourism operators.

Provincial officials said beach monitoring has been intensified and affected stretches temporarily closed in some areas as precautionary measures.

Environmental teams are assessing the extent of shoreline contamination and the impact on coral reefs and fisheries.

Thailand’s marine department has stated that efforts are under way to secure the wreck and prevent additional leakage.

Specialists are examining whether remaining fuel onboard can be safely extracted.

Tourism operators have expressed concern over reputational risks during peak travel periods, although authorities have sought to reassure visitors that swift containment efforts are being carried out.

The government has emphasised coordination between naval units, environmental agencies and local administrations to manage the response.

Investigations continue into the cause of the sinking and the quantity of oil released, with officials pledging accountability and measures to mitigate further environmental harm.