Authorities in Coron, Palawan have not found any traces of the possible oil slick reported by the UP Marine Science Institute (UPMSI), as per a statement by Coron’s Municipal Disaster Risk Reduction and Management Office. The UPMSI had earlier said that satellite imagery showed “possible oil slicks near Coron” on April 2, which could have crept from Oriental Mindoro where the tanker Princess Empress sank carrying 800,000 litres of thick oil on February 28. More than half the oil has been discharged and dispersed over hundreds of kilometers of waters famed for having diverse marine life. The recovery could take years.