Sinkhole traps bus and car at Chennai

A 4.5 meter deep (15 ft), 5 meters long and 2 meters wide, a sinkhole at Chennai’s Anna Salai Road, near Church Park school, India, trapping a car and passenger bus, around 2 pm on Sunday. This could be natural sinkhole caused over hundreds of years from water forging a cavity in the chalk and then the heavy rain leading to the collapse of soil above the cavity, or manmade by Metrorail work on a nearby site.