Aerial photo taken aboard surveillance plane of the State Oceanic Administration (SOA) shows the oil spill on the water surface around the sunken Iranian tanker Sanchi in the East China Sea, Jan. 15, 2018. The SOA said in a statement that several oil slicks were found near the site where the vessel sank and they were much bigger than the previous day. The tanker Sanchi, carrying 136,000 tonnes of light crude oil from Iran, collided with the CF Crystal, a Hong Kong-registered bulk freighter, about 300 km east of the Yangtze River estuary on Jan. 6. (Xinhua/Liu Shiping)