China has executed a man who killed 35 people by plowing his car into crowds at a sports center in November, in the country’s deadliest known attack against the public in a decade, state media reported Monday.

China has executed two men who committed deadly attacks that killed dozens in November, raising concerns about a surge in what are called “revenge on society crimes.”

China on Monday executed two men convicted of separate deadly attacks carried out in November amid a series of violent crimes committed in the Asian nation.