At least six people have been killed and 16 injured after an enormous sinkhole swallowed a bus and a number of pedestrians in central China’s Xining city. The incident, outside a hospital, also triggered an explosion inside the hole, a video showed. Rescue teams are now searching for the 10 passengers still missing and the cause of the accident is still under investigation.
Jeez, that's awful. As packed as those buses can be I am very surprised it wasn't worse. Most likely cause for the sink hole is going to be a leaking water line.