Editing Improvised explosive device (section)

===United States===
[[File:Oklahomacitybombing-DF-ST-98-01356.jpg|thumb|The Alfred P. Murrah Federal Building two days after the [[Oklahoma City bombing]]]]
In the 1995 [[Oklahoma City bombing]], [[Timothy McVeigh]] and [[Terry Nichols]] built an IED with [[ammonium nitrate]] fertilizer, [[nitromethane]], and stolen commercial explosives in a rental truck, with [[sandbag]]s used to concentrate the explosive force in the desired direction. McVeigh detonated it next to the [[Alfred P. Murrah Federal Building]], killing 168 people, 19 of whom were children.

High school students [[Eric Harris and Dylan Klebold]] used multiple IEDs during the [[Columbine High School massacre]] on 20 April 1999, including two large [[propane]] bombs that were placed in the cafeteria, powerful enough to kill or injure everyone inside the room, along with [[pipe bombs]], [[Molotov cocktails]], and also two [[car bombs]], designed to attack [[first responder]]s and [[news reporter]]s responding to the initial bombing. Both propane bombs and both car bombs failed to detonate correctly. They then went on to shoot and kill 13 people before committing suicide. If all bombs detonated, there could have been hundreds killed in the massacre, but nobody was injured by any of the explosives during the massacre. The pair had planned to exceed the death count during the Oklahoma City bombing four years earlier.{{according to whom?|date=October 2024}}

In January 2011, a [[2011 Spokane bombing attempt|shaped pipe bomb was discovered]] and defused at a [[Martin Luther King Jr.]] memorial march in [[Spokane, Washington]]. The FBI said that the bomb was specifically designed to cause maximum harm as the explosive device was, according to the ''Los Angeles Times'', packed with fishing weights covered in rat poison, and may have been racially motivated. No one was injured during the event.

On 15 April 2013, as the annual [[Boston Marathon]] race was concluding, two bombs were [[Boston Marathon bombing|detonated]] seconds apart close to the finish line. Initial FBI response indicated suspicion of IED [[pressure cooker bomb]]s.

On 17–19 September 2016, [[2016 New York and New Jersey bombings|several explosions]] occurred in [[Manhattan]] and [[New Jersey]]. The sources of the explosions were all found to be IEDs of various types, such as pressure cooker bombs and [[pipe bomb]]s

Many IED-related arrests are made each year in circumstances where the plot was foiled before the device was deployed, or the device exploded but no one was injured.<ref>{{cite news|url=https://www.npr.org/sections/thetwo-way/2017/10/13/557629826/suspect-in-would-be-airport-bombing-nabbed-with-help-from-rei|title=Suspect in Would-Be Airport Bombing Nabbed With Help From REI|newspaper=NPR|date=13 October 2017|last1=Domonoske|first1=Camila|archiveurl=https://web.archive.org/web/20221225060629/http://www.npr.org/sections/thetwo-way/2017/10/13/557629826/suspect-in-would-be-airport-bombing-nabbed-with-help-from-rei|archive-date=December 25, 2022}}</ref>

A number of deaths and property damage occurring during [[gender reveal party|gender reveal parties]] have been caused by the detonation of improvised explosive devices. These include the 2017 [[Sawmill Fire (2017)|Sawmill Fire]], which was started by the detonation of a mass of [[tannerite]] intended to disperse coloured powder,<ref>{{Cite web |author=Andrea Diaz |title=Officials release video from gender reveal party that ignited a 47,000-acre wildfire |url=https://www.cnn.com/2018/11/27/us/arizona-gender-reveal-party-sawmill-wildfire-trnd/index.html |access-date=2022-05-10 |website=CNN|date=28 November 2018|archiveurl=https://web.archive.org/web/20210303090615/https://www.cnn.com/2018/11/27/us/arizona-gender-reveal-party-sawmill-wildfire-trnd/index.html|archive-date=March 3, 2021}}</ref> and an incident in 2019 where an IED similarly designed to release powder exploded in a manner similar to a pipe bomb, killing a 56-year-old woman after shrapnel struck her in the head.<ref>{{Cite web |date=2019-10-30 |title=Sheriff: Gender reveal party explosion was a stunt gone awry {{!}} Iowa {{!}} lacrossetribune.com |url=https://lacrossetribune.com/news/state-and-regional/ia/sheriff-gender-reveal-party-explosion-was-a-stunt-gone-awry/article_58f39ad2-f4cb-58c7-9820-d0b59fce98e9.html |access-date=2022-05-10 |archive-url=https://web.archive.org/web/20191030234807/https://lacrossetribune.com/news/state-and-regional/ia/sheriff-gender-reveal-party-explosion-was-a-stunt-gone-awry/article_58f39ad2-f4cb-58c7-9820-d0b59fce98e9.html |archive-date=30 October 2019 }}</ref>