The Panama-registered oil tanker Sanchi is still ablaze and drifting in the water, after it collided with a Hong Kong cargo ship off China's east coast on Jan. 6, said Xie Qunwei, deputy director with Shanghai Maritime Safety Administration at a press conference on Friday. Rescue workers are facing bigger challenges as large oil fires are producing heavy smoke and toxic gas, said Xie. On the same day, the Chinese Foreign Ministry also said that China is making every effort to rescue the missing sailors.