The incident, which took place at 6:18 p.m. (10:18 GMT) on Wednesday in a sightseeing area, injured a further 24 people, Xinhua said.
The scenic area has been closed while the incident is being investigated, Xinhua said.
Videos circulating on social media, verified by Reuters, show a low-hanging suspension bridge tilted to one side with handrails made from cables dangling between the walkway and the ground below. Part of the bridge hangs over a river.
The videos also show at least two people lying on the ground below the bridge.
In one of the videos, a casualty was put onto a wooden plank, while another video shows people carrying the makeshift stretcher away from the scene.
The 65-square-kilometer (25-square-mile) area, called Xiata, boasts a natural landscape including a mountain pass, a valley, and a river as well as cultural remains such as ruins of an ancient town, public information shows.
Authorities have sent a task force to the site of the accident to oversee the investigation and the treatment of the injured, Xinhua said in a separate report.
A suspension bridge snaps in northwestern China's Xinjiang region, Aug. 6, 2025. Videos courtesy of X, douyin