Haixun 31, a maritime patrol vessel of the Maritime Safety Administration, returned to Zhuhai, Guangdong province, on Thursday from the United States.

The vessel, one of China's biggest maritime patrol ships, left Shanghai on Aug 25 and arrived in Hawaii on Sept 4. It was the first visit to the US by a Chinese maritime vessel.

During its five-day visit to Hawaii, Haixun 31 worked with the US Coast Guard on a series of maritime cooperation exercises, including a field test of joint search-and- rescues.

Issues such as Sino-US maritime safety management, water traffic safety and disaster relief were also discussed.