(ATTN: RECASTS headline, lead with latest info; ADDS more details throughout)
ULSAN, South Korea, Sept. 28 (Yonhap) -- Nine sailors were injured after a fire broke out on a cargo ship and spread to another vessel following an explosion in the southeastern port city of Ulsan, authorities said Saturday.
The 25,881-ton vessel for transporting petroleum products from the Cayman Islands caught fire following the explosion at around 10:51 a.m. when it was in a berth at Yeompo Quay in Ulsan, 400 kilometers southeast of Seoul.
A total of 25 people, all foreign nationals, were aboard the ship, but were all rescued, according to the authorities.
The fire quickly spread to another cargo ship next to it with 21 crew members onboard, but they were also all saved.
Nine people were injured, with one sustaining serious injuries, according to the authorities.
Efforts are under way to contain the fire and to prevent it from spreading further, the authorities said, adding that the Coast Guard is investigating the exact cause of the explosion.
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