Firefighters spray water on a blaze caused by an explosion at the International Minerals and Chemicals Corp. fertilizer plant in Sterlington, La. The blast killed at least three and injured more than 120 others. Five people are still missing. About 500 people, including patients at nearby Sterlington Hospital, were evacuated for fear of hazardous fumes and more explosions. However, hazardous-chemicals experts later determined all dangerous substances had been destroyed and no longer posed any danger. The cause of the explosion is still undetermined.