Beijing police have placed a 57-year-old man in 10-day administrative detention after he was identified as the driver who allegedly beat a delivery courier in the city's Dongcheng district on Sunday. The courier's electric tricycle had struck the man's car.

Video of the incident was posted to social media sites.

In the video, the driver - identified by police only by his surname, Li - is seen charging the courier and slapping his face at least six times as the car stands in the middle of the road. The courier makes no attempt to evade the attack or to hit back at the driver. Two other witnesses are shown in the video trying unsuccessfully to calm the driver down.