The collision between the Panama-registered, 164,154 dwt, Sanchi, owned by Iranian tanker company NITC, and the Hong Kong-flagged 75,725 dwt bulker CF Crystal took place around 8pm on Saturday around 160 km east of the Yangtze River according to China's Ministry of Transport.
The tanker Sanchi reportedly capsized and caught fire following the collision and all 32 crew – 30 Iranians and two Bangladesh nationals – are missing. The Chinese Ministry said 21 seafarers, all Chinese nationals, onboard the bulker were rescued.
The Sanchi was carrying 136,000 tonnes of oil condensate from Iran to Korea, while the bulker had a cargo of 64,000 tonnes of grain.
The Chinese authorities reported an oil spill of an unspecified size and said the bulker had suffered damage in the collision.
The Chinese dispatched eight vessels for search and rescue operations.