Thirty-five people were killed and dozens injured when a man plowed a car into a crowd at a sports stadium in southern China, police said Tuesday. It is the latest in a string of violent acts that prompted leader Xi Jinping to publicly urge authorities to get “conflicts and disputes” under control.

The attack took place Monday when police said 62-year-old man drove an SUV into a group of people outside a sports stadium in the city of Zhuhai.

Authorities in southern China said the attack took place shortly before the airshow where top Russian official Sergei Shoigu is expected to attend.