7 dead in oil tanker explosion

Photo taken on Oct. 12, 2013 shows the spilled oil at the scene of an oil tanker explosion at a shipyard in Zhenhai District of Ningbo, east China's Zhejiang Province, Oct. 12, 2013. Seven people were confirmed dead and another injured in an oil tanker explosion happening around 8:40 a.m. on Saturday, according to the local government. (Xinhua/Zhang Peijian)

At least seven people were killed and one injured when an oil tanker exploded and caught fire in the coastal city of Ningbo in east China's Zhejiang province on Saturday morning, local authorities said.

The accident happened at about 8:40 a.m. at Zhangjianqi shipyard in the city's Zhenhai district when the 300-tonne vessel was being repaired.

The fire blaze was extinguished at about 11 a.m.

The cause of the accident is under investigation.