This is the final report of the U.S. Chemical Safety and Hazard Investigation Board's (CSB's) investigation into West Fertilizer Company fire and explosion on April 17, 2013. "The violent detonation fatally injured 12 emergency responders and three members of the public. Local hospitals treated more than 260 injured victims, many of whom required hospital admission. The blast completely destroyed the WFC facility and caused widespread damage to more than 150 offsite buildings. The WFC explosion is one of the most destructive incidents ever investigated by [CSB] as measured by the loss of life among emergency responders and civilians; the many injuries sustained by people both inside and outside the facility fenceline; and the extensive damage to residences, schools, and other structures."
United States. Chemical Safety and Hazard Investigation Board: http://www.csb.gov/