Thirty-two people are missing after an oil tanker and a cargo ship collided off China's east coast on Saturday evening.
The Sanchi tanker, a Panama-registered vessel carrying 136,000 tonnes of Iranian oil, caught fire after the crash.
China's Ministry of Transport said the missing people are its crew - 30 Iranians and two Bangladeshis.
The 21-strong crew of the cargo ship had been rescued, it said.
"Sanchi is floating and burning as of now. There is an oil slick and we are pushing forward with rescue efforts," the ministry said.
An image published by state broadcaster CGTN showed huge plumes of smoke rising from the tanker.
Tanker and ship collision near Shanghai leaves 32 missing - BBC News