A oil tanker has exploded while docking at the northern port of Lach Bang, Thanh Hoa Province, killing two people and injuring four others, three of them severely, police said Sunday.
Fire gutted the tanker, which was carrying 5,000 litters of oil.
Colonel Nguyen Van Binh, Deputy Chief Officer of Thanh Hoa police, said the blast happened at 8.15 a.m. Saturday when some crewmen were using a weld torch to repair the vessel.
Investigations have been carried out into whether the fire was ignited in the oil compartments or from the cooking gas cylinder, Col. Binh said.
Witnesses said they heard a noise "like a bomb going off," and saw the crewmen and pieces of the boats flying in all directions and falling into the water.
Pham Van Tuan, 33, and Hoang Van Huynh, 36 died in the explosion. Four other were rescued, three having suffered severe burns, including the boat owner, Nguyen Van Truong.
Flames rapidly engulfed the whole tanker. Firemen, locals and police managed to put out the fire after an hour long battle.