A car attack that killed 35 people in China has sparked questions about a recent spate of public violence, as officials continue to censor discussion on the incident.
On social media, many are discussing the social phenomenon of "taking revenge on society", where individuals act on personal grievances by attacking strangers.
Police said the driver who ploughed into crowds at a stadium in the southern city of Zhuhai on Monday night acted out of unhappiness over a divorce settlement.
While it is believed to be China's deadliest known act of violence in decades, it follows a string of attacks in recent months, including a stabbing spree at a Shanghai supermarket and a knife attack at a Beijing school.
Amid a national outcry over the Zhuhai incident, President Xi Jinping has vowed "severe punishment" for the perpetrator. Police said the 62-year-old driver, who has been arrested, is in a coma due to self-inflicted wounds.
On Chinese social media platforms, many expressed shock at his actions and asked if it was a symptom of deeper societal problems.
One comment that went viral on Weibo read: "How can you take revenge on society because your family life is not going well? You've taken the lives of so many innocent people, will you ever have peace of mind."
“If there is a widespread lack of job security and huge pressure to survive... then society is bound to be full of problems, hostility and terror,” a user said on WeChat.
Another person wrote in a widely-shared post: "We should be examining the deep-rooted, social [factors] that have fostered so many indiscriminate [attacks on] the weak."
A number of violent attacks in China have been reported this year, including a mass stabbing and firearms attack in Shandong in February which killed at least 21 people.
In October, a knife attack at a top school in Beijing injured five people, while in September, a man went on a stabbing spree at a supermarket in Shanghai, killing three people and injuring several others.