DEHNOW, Iran - Bulldozers digging graves in this tiny Iranian village Thursday drowned out the wails of mourners waiting to bury loved ones killed when a runaway train derailed at more than 90 mph and exploded, killing 320 people and injuring 460.
The provincial governor said negligence or brake failure probably caused 51 train cars to roll down the tracks before dawn Wednesday, picking up speed for 31 miles until all but three derailed, caught fire and exploded.
Many of the dead were firefighters who had nearly extinguished the blaze when gasoline, fertilizer and industrial chemicals in the freight cars detonated.