Possible emergencies in the photo contest.

The host gave first aid to a heart attack, and another person was crushed to death when the ambulance came. Relatives of the victims had a dispute with ambulance personnel, which eventually turned into a group fight. When Xu's camera broke down, he joined the gang fight. Finally, the riot police came and the two sides formed a confrontation.

So the photographer who didn't break the camera recorded this moment and won the prize.