An aerial drone photo shows search and rescue operations at the site of a boat collision on the Yuanshui River in Qinglang Township, Huaihua City, central China's Hunan Province, Feb. 26, 2025. (Xinhua/Cheng Ji'an)CHANGSHA, Feb. 28 (Xinhua) -- Eleven people have been confirmed dead and five are missing after a passenger boat collided with an oil waste recovery vessel in central China's Hunan Province on Tuesday, local authorities said on Friday.The incident occurred on the Yuanshui River in Qinglang Township, Yuanling County, causing 19 people to fall overboard, of whom three were rescued.The part of the river where the incident took place has an average water depth of more than 60 meters and a width of up to 500 meters, and the geological conditions of the river section are complex, with turbulent currents near the riverbed, according to the rescue headquarters, indicating the difficulties encountered in search and rescue operations.Over 500 rescuer workers are making all-out search and rescue efforts. The sunken passenger boat has been salvaged and brought to the surface of the water, with search efforts ongoing for those still missing.