The seafarers were taken to hospital for precautionary examination having been exposed to ammonia during the incident in Houston on Friday.

A statement issued on behalf of Exmar said the men have been discharged in good health.

The spill occurred aboard the 38,450-cbm Sombeke (built 2006) on Friday night after a gasket blew as the vessel was going through a cool down phase before transferring gas to the Houston Ammonia Terminal.

Exmar