An unusual security camera video has emerged from China showing a car crashing into a fence, setting off an amazing domino effect.<br /><br />In the clip, which was filmed on July 17 in Hunan Province, a driver ploughs into the metal fence in the middle of the road. <br /><br />The force of the crash then causes the rest of the barrier to slowly topple, section after section, for hundreds of metres up the road.<br /><br />No-one was seriously injured in the incident, according to local media.
