TEXAS STATE FIRE MARSHAL: Arson Not Ruled Out In Fertilizer Plant Explosion Investigation

The cause of the West, Texas fire that caused a huge explosion is still "undetermined", State Fire Marshal Chris Connealy told reporters this afternoon. A number of potential causes have been eliminated, including kindling from prior fires, spontaneous ignition, the storage of ammonium nitrate, smoking at the site, weather, and the 480 volt electrical system. Potential causes that could not be eliminated included the smaller 120 volt electrical system, golf cart at the site that had been recalle...