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
Improvised vehicle armour transport vehicles with scrap materials: this came to be known as ""hillbilly armour"" by the Americans, or sometimes ""hajji armour"" when installed by Iraqi contractors. The first armoured cars to see combat were entirely improvised, although this soon changed as the war continued. A few were used by the Belgian army during the German invasion. The British Royal Naval Air Service received reports of this and converted some of their own cars. Improvised conversion continued until December 1914 when the first standardized design entered service. Most armies involved in the conflict adopted some form of improvised armour at some point.