hexogen made a deep crater, and caused major damage, killing 91 people and injuring 1,500. 151 buildings were destroyed. Ufa train disaster On 4 June 1989, a gas explosion destroyed two trains (37 cars and two locomotives) in the Soviet Union. At least 575 people died and more than 800 were injured. Intelsat 708 Long March 3B launch failure On 14 February 1996, a Chinese Long March 3B rocket veered severely off course immediately after clearing the launch tower at the Xichang Satellite Launch Center, then crashed into a nearby city and exploded. Following the disaster, foreign media were kept in a bunker for five hours while, some alleged, the Chinese People's Liberation Army attempted to "clean up" the damage. Officials later blamed the failure on an "unexpected gust of wind" although video shows this is not the case. Xinhua News Agency initially reported 6 deaths and 57 injuries. Enschede fireworks disaster On 13 May 2000, 177 tonnes of fireworks exploded in Enschede, in the Netherlands, in which 23 people were killed and 947 were injured. The first explosion had the order of 800 kg TNT equivalence; the final explosion was in the range of 4,000–5,000 kg TNT. 2001–present AZF chemical factory On 21 September 2001, an explosion occurred at a fertilizer factory in Toulouse, France. The disaster caused 31 deaths, 2,500 seriously wounded, and 8,000 light injuries. The blast (estimated yield of 20–40 tons of TNT, comparable in scale to the military test Operation Blowdown) was heard 80 km away (50 miles) and registered 3.4 on the Richter magnitude scale. It damaged about 30,000 buildings over about two-thirds of the city, for an estimated total cost of about €2 billion. Ryongchon disaster A train exploded in North Korea on 22 April 2004. According to official figures, 54 people were killed and 1,249 were injured. Seest fireworks disaster On 3 November 2004, about 284 tonnes of fireworks exploded in Kolding, in Denmark. One firefighter was killed, and a mass evacuation of 2,000 people saved many lives. The cost of the damage was estimated at €100 million. Texas City Refinery explosion On 23 March 2005, there was a hydrocarbon leak due to incorrect operations during a start up which caused a vapour cloud explosion when ignited by a running vehicle engine. There were 15 deaths and more than 170 injured. 2005 Hertfordshire Oil Storage Terminal fire On 11 December 2005, there