The Philippine Coast Guard (PCG) has shifted to monitoring operations after recovering 1,660 kilograms of oil-contaminated materials from the coastal waters of Mariveles, Bataan. The waste, collected in 83 sacks, will be turned over to an accredited disposal facility. The oil spill, reported in Sitio Naswe, Barangay Ipag, affected around 500 square meters and involved approximately 25 liters of used oil. A joint inspection found no visible oil sheen in the affected waters.