It took authorities more than a day to release details of the incident, in which a man drove his car into a crowd, killing 35 people

In the hours since a 63-year-old man rammed his car into a sports centre in Zhuhai, killing 35 people and severely injuring 43 others, questions have swirled on Chinese social media about why it took authorities so long to reveal the details.

The driver, identified by his family name of Fan, was discovered in the car with self-inflicted knife wounds to his neck. Police said their preliminary investigation suggested he was dissatisfied with the split of assets in his divorce.