China's Unmanned Submersible Mission Hailed as Successful

China's maritime authority has hailed the mission of an unmanned underwater vehicle as a success after it completed a fortnight voyage that included deep-water and night dives in the Pacific Ocean.

The State Oceanic Administration said on Wednesday that Qianlong-1, or underwater dragon-1, completed seven diving missions from Oct. 6 to 12, with a record depth of 5,162 meters.

Xu Huixi, leader of the Qianlong-1 project, said the vehicle had made several technological breakthroughs during the mission and it functioned normally.

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