Three men received first and secondary degree burns during a fire aboard a vessel at a ship repair yard in Port of Spain.

Maritime Preservation Limited owns the vessel.

A fourth man has been treated for smoke inhalation.

The incident occurred yesterday afternoon at around 12:40.

According to the Fire Chief Arnold Bristo eyewitnesses say there was an explosion on board the ship.

The Fire Chief told TV6 news the value of the vessel is 3 million dollars and the cost of the damage is $30,000 dollars.

Investigations into the incident are ongoing.