A massive explosion took place around 8:50pm ET at a fertilizer plant in a small town in Texas. The cause of the explosion is not precisely known, but the plant was on fire beforehand. The casualty reports are tentative and expected to rise, but two people are dead and over 150 are injured. Firefighters responding to the initial fire are unaccounted for. Over a thousand residents have been evacuated from their homes. Officials are worried about the volatility of another tank at the plant, but also about the potential damage from exposure to anhydrous ammonia. The blast was heard in Dallas, 75 miles away. "There are lots of houses that are leveled within a two-block radius. A lot of other homes are damaged as well outside that radius." A brief YouTube video shows the explosion of the plant.