Chinese president Xi Jinping ordered an "all-out effort" to treat the injured and called for severe punishment of a man who rammed his car into people at a sports centre in the southern Chinese city of Zhuhai, killing at least 35 people.

China's top leaders have urged "all-out efforts" to treat those injured in a car attack in southern China, one of the deadliest incidents in the country's recent history, as online posts asking what the attack says about Chinese society were censored.

Officials in southern China ramped up security on Wednesday at the site of the country's deadliest attack in a decade, snuffing out makeshift memorials to the 35 people killed when

Officials in southern China ramped up security on Wednesday at the site of one of the country's deadliest mass-casualty events in years, snuffing out makeshift memorials to the 35 people killed when a man drove a car into a crowd at a sports complex.

Makeshift memorials have been cleared at the site of a deadly car ramming attack in the Chinese city of Zhuhai. Chinese authorities had already scrubbed social media after people complained of the attack response.