Two officers are missing off Vietnam after their ship sank following a collision.

A Vietnamese cargoship named as Thanh Dat 01 went down 120 miles from Vung Tao on Monday, local media said.

It had been involved in a collision with the 6,750-dwt Guo Shun 21 (built 2010), operated by Hong Shun Shipping Management of China, reports added.

A search was begun for the captain and second engineer, but nine other people, including a passenger, were rescued.

Thanh Dat 01 was carrying steel, while Guo Shun 21 was en route from Yokohama to Vung Tau.