At least six people have been killed and 16 injured after a bus collapsed into a sinkhole in central China. <br /><br />The video, filmed in the city of Xining in Qinghai Province on January 13, shows the road suddenly collapsing, swallowing the bus when it was picking up passengers at a stop.<br /><br />A ball of fire and the smoke can be seen bursting out of the huge sinkhole.<br /><br />The gas, electricity and water were shut down immediately to ensure the rescue work could start after the incident happened.
