ANFO of Shijiazhuang, China, on 16 March 2001. A total of 108 people were killed, and 38 others injured when, within a short time, several ANFO bombs exploded near four apartment buildings. Improvised bombs made with agricultural-grade AN are less sensitive and less efficient than the explosive-grade variety. In November 2009, a ban on ammonium sulfate, ammonium nitrate, and calcium ammonium nitrate fertilizers was imposed in the former Malakand Division – comprising the Upper Dir, Lower Dir, Swat, Chitral and Malakand districts of the North West Frontier Province (NWFP) of Pakistan – by the NWFP government, following reports that those chemicals
Father of All Bombs also questions on what type of explosives it used. They quoted Tom Burky, a senior research scientist at Battelle, saying "It's not even clear what kind of weapon the Russians tested." He questions if it was what some experts call a fuel-air explosive or if it was a thermobaric weapon. "Fuel-air and thermobaric bombs differ in usefulness". Burky says that the weapon depicted in the video appears to be a fuel-air explosive, based on its shape. German military analyst Sascha Lange speaking at "Deutsche Welle" pointed out multiple discrepancies of the released video and expressed his skepticism. John Pike, an