China deployed underwater drones in Indian Ocean: Report By ANI| Posted by Sameer | Published: 1st January 2021 8:08 am IST New Jersey: China has deployed a fleet of underwater drones called Sea Wing (Haiyi) glider in the Indian Ocean, which can operate for months on end and make observations for naval intelligence purposes, according to defence analyst HI Sutton. Writing for the Forbes magazine, Sutton said that these sea gliders, which the Chinese are deploying “en masse”, are a type of Uncrewed Underwater Vehicle (UUV) which were launched in mid-December 2019 and recovered in February after making over 3,400 observations. Citing the government sources, Sutton in his report said that these gliders are similar to those deployed by the US Navy, one of which was seized by Beijing in 2016 to ensure “safe navigation of passing ships.”