Thirty-five people were killed and another 43 injured after a car rammed into people in a sports center in the city of Zhuhai, south China's Guangdong Province, on Monday, the city's public security bureau said on Tuesday.
The incident occurred around 7:48 p.m. on Monday when citizens were exercising at the sports center.
The 62-year-old suspect, a divorced man surnamed Fan, was quickly brought under control by the police as he was fleeing the scene, the bureau said.
Responding officers found Fan in his vehicle attempting to self-harm with a knife. They swiftly intervened and sent him to the hospital.
Fan is still receiving medical treatment as he was unconscious due to severe injuries and is not yet fit to be questioned by the police.
A preliminary investigation indicates that Fan's actions stemmed from his dissatisfaction with the property division outcome of his divorce, according to the police.
Police have filed a case to investigate Fan on suspicion of endangering public safety by dangerous means and have placed him under criminal detention.
Further investigation into the case and medical treatment for the injured are underway.