A motorist in southern China forced a bus to stop by driving in front of it after his wife failed to get on.<br /><br />In the video, filmed in Jiujiang City in Jiangxi Province on March 31, a white car suddenly changes lane and drives in front of a bus to make it stop.<br /><br />In another clip, a female passenger can be seen falling down the stairs from her seat as the bus suddenly has to emergency brake to avoid the car.<br /><br />According to reports, the motorist's wife did not catch the bus, so he drove to chase the bus and forced it to stop.<br /><br />Several passengers fell down and suffered injuries. Police have detained the motorist.