The South African Maritime Authority (SAMSA) says they’re aware of a vessel releasing toxic fumes at St. Helena Bay on the Cape West Coast.

SAMSA spokesperson Tebogo Ramatjie says the fumes were released after a bulk carrier suffered a chemical reaction when its cargo came into contact with rainwater in Durban.

Ramatjie says the vessel has been moved offshore and poses no immediate threat to the marine environment and humans.

He says chemical experts are on board to ensure that the cargo is chemically neutralised and safely dumped at an approved site.