The capsized dredger MV Hong Hai 189 has sunk in waters off Mariveles, Bataan, spilling oil and other mixed substances in the water, the Philippine Coast Guard (PCG) said.
The MV Hong Hai, a Sierra Leone-registered dredging vessel, sank 400 yards away from Sisiman Lighthouse in Mariveles at around 5:21 a.m. on Saturday, after colliding with the MT Petite Soeur, a a Marshall Island-flagged chemical and oil product tanker in the waters off Corregidor Island.
PCG Station Bataan and the Marine Environmental Protection Unit helped install oil spill booms and absorbent bags.
The PCG reported the collision of the two vessels on April 29.
Three people died, two were still missing, while 15 others were rescued.
According to PCG, the dredger came from Botolan, Zambales, and had 20 crew members on board.