A pressure cooker bomb is an improvised explosive device (IED) created by inserting explosive material into a pressure cooker and attaching a blasting cap into the cover of the cooker. [1]
Pressure cooker bombs have been used in a number of attacks in the 21st century. Among them have been the 2006 Mumbai train bombings, 2010 Stockholm bombings (failed to explode), the 2010 Times Square car bombing attempt (failed to explode), the 2013 Boston Marathon bombing, and the 2017 Manchester Arena bombing. [2]
Pressure cooker bombs are relatively easy to construct. Most of the materials required can be easily obtained. The bomb can be triggered using a simple electronic device such as a digital watch, garage door opener, cell phone, pager, kitchen timer, or alarm clock. [1] [3] The power of the explosion depends on the size of the pressure cooker and the amount and type of explosives used. [4]
Similar to a pipe bomb, the containment provided by the pressure cooker means that the energy from the explosion is confined until the pressure cooker itself explodes. This in turn creates a relatively large explosion using low explosives and generating potentially lethal fragmentation. [5]
French police prevented a terrorist attack in Strasbourg, France, on New Year's Eve 2000. Ten militants were convicted for the plot. [6]
From 2002–04, pressure cooker bombs were widely used in terror and IED attacks in Afghanistan, India, and Pakistan. [7]
In 2003, a terrorist from Chechnya named Abdullah, carrying a pressure cooker bomb detonated explosives and killed six people before being arrested near Kabul International Airport in Afghanistan. [8] The Taliban claimed responsibility. [8] In 2004, the Department of Homeland Security issued a warning to US agencies about pressure cookers being converted to IEDs. [7]
In July 2006, in Mumbai, India, 209 people were killed and 714 injured by pressure cooker bombs in the 2006 Mumbai train bombings. [6] According to Mumbai Police, the bombings were carried out by Lashkar-e-Taiba and Students Islamic Movement of India (SIMI). [9]
Step-by-step instructions for making pressure cooker bombs were published in an article titled "Make a Bomb in the Kitchen of Your Mom" in the Al-Qaeda-linked Inspire magazine in the summer of 2010, by "The AQ chef". [3] [10] [11] The article describes the technique as a simple way to make a highly effective bomb. [12] Analysts believe the work was the brainchild of Anwar al-Awlaki, and edited by him and by Samir Khan. [13] [14] Inspire's goal is to encourage "lone wolf" Jihadis to attack what they view as the enemies of Jihad , including the United States and its allies. [15]
Several Islamic radical terrorist attempts in the 2010s involved pressure cooker bombs. [7] The unsuccessful Times Square car bombing attempt in May 2010, in New York City, included a pressure cooker bomb which failed to detonate. [6] [7] [16] [17] The bomb-maker, Faisal Shahzad, was sentenced to life in prison. [6] In the December 2010 Stockholm bombings, Taimour Abdulwahab al-Abdaly, an Islamic extremist suicide bomber who cited Swedish troops in Afghanistan as justification for the attack, set up a pressure cooker bomb, which failed to detonate. [7] [18]
Pressure cooker bombs were utilized in the 2011 Marrakesh bombing, where Adil El-Atmani, a Moroccan citizen who had pledged allegiance to Al-Qaeda in the Islamic Maghreb, remotely detonated 2 homemade bombs, killing 17 and injuring 25. [19]
In July 2011, Naser Jason Abdo, a U.S. Army private at Fort Hood, Texas, who took pressure cooker bomb-making tips from the Al-Qaeda magazine article, was arrested for planning to blow up a restaurant frequented by U.S. soldiers. Two pressure cookers and bomb-making materials were found in his hotel room. [7] [17] [20] He was sentenced to life in prison. [17]
In Pakistan, in March 2010, six employees of World Vision International were killed by a remotely detonated pressure cooker bomb. [17] [21] In October 2012, French police found a makeshift pressure cooker with bomb-making materials near Paris as part of an investigation into an attack on a kosher grocery store. [16]
Two pressure cooker bombs were used in the Boston Marathon bombings in April 2013. [22] The pressure cookers were filled with nails, ball bearings, and black powder. Initially, it was believed the devices were triggered by kitchen-type egg timers, [23] however, subsequent evidence indicated a remote device was used to trigger the bombs. [24] One of the bombers, Dzhokhar Tsarnaev, told investigators that he learned the technique from an article in Inspire magazine. [25]
On Canada Day 2013, pressure cooker bombs failed to explode at the Parliament Building in Victoria, British Columbia. [26]
On May 19, 2016, passengers on a bus in Wrocław, Poland, alerted the driver to a suspicious package. The driver removed the package from the bus. Shortly later it exploded with no fatalities but did injure one woman slightly. Authorities believed it was a three liter pressure cooker packed with nails and nitrate explosive. [27]
On September 17, 2016, an explosion occurred in Lower Manhattan, New York, wounding 29 civilians. The origin of the explosion was found to be a pressure cooker bomb. [28] At least one other bomb was found unexploded. [29] A suspect for that explosion and others in New Jersey, Ahmad Khan Rahami, was captured two days later. [30]
Both the 2010 Stockholm bombings and the foiled 2016 Sweden terrorism plot involved pressure-cooker bombs. [31] [32]
Pentaerythritol tetranitrate (PETN), also known as PENT, pentyl, PENTA, TEN, corpent, or penthrite, is an explosive material. It is the nitrate ester of pentaerythritol, and is structurally very similar to nitroglycerin. Penta refers to the five carbon atoms of the neopentane skeleton. PETN is a very powerful explosive material with a relative effectiveness factor of 1.66. When mixed with a plasticizer, PETN forms a plastic explosive. Along with RDX it is the main ingredient of Semtex.
A bomb is an explosive weapon that uses the exothermic reaction of an explosive material to provide an extremely sudden and violent release of energy. Detonations inflict damage principally through ground- and atmosphere-transmitted mechanical stress, the impact and penetration of pressure-driven projectiles, pressure damage, and explosion-generated effects. Bombs have been utilized since the 11th century starting in East Asia.
A car bomb, bus bomb, van bomb, lorry bomb, or truck bomb, also known as a vehicle-borne improvised explosive device (VBIED), is an improvised explosive device designed to be detonated in an automobile or other vehicles.
An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mechanism. IEDs are commonly used as roadside bombs, or homemade bombs.
The 2004 Madrid train bombings were a series of coordinated, nearly simultaneous bombings against the Cercanías commuter train system of Madrid, Spain, on the morning of 11 March 2004—three days before Spain's general elections. The explosions killed 200 people and injured around 2,500. The bombings constituted the deadliest terrorist attack carried out in the history of Spain and the deadliest in Europe since 1988. The attacks were carried out by individuals who opposed Spanish involvement in the 2003 US-led invasion of Iraq.
A nail bomb is an anti-personnel explosive device containing nails to increase its effectiveness at harming victims. The nails act as shrapnel, leading almost certainly to more injury in inhabited areas than the explosives alone would. A nail bomb is also a type of flechette weapon. Such weapons use bits of shrapnel to create a larger radius of destruction.
The 2006 Mumbai train bombings were a series of seven bomb blasts on 11 July. They took place over a period of 11 minutes on the Suburban Railway in Mumbai, the capital of the Indian state of Maharashtra and the nation's financial capital. The bombs were set off in pressure cookers on trains plying on the Western Line Suburban Section of the Mumbai Division of Western Railway. The blasts killed 209 people and injured over 700 more.
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Inspire is an English-language online magazine published by the organization al-Qaeda in the Arabian Peninsula (AQAP). The magazine is one of the many ways AQAP uses the Internet to reach its audience. Numerous international and domestic extremists motivated by radical interpretations of Islam have been influenced by the magazine and, in some cases, used its bomb-making instructions in their attempts to carry out attacks. The magazine is an important brand-building tool, not just of AQAP, but of all al-Qaeda branches, franchises and affiliates.
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The Boston Marathon bombing, sometimes referred to as simply the Boston bombing, was an Islamist domestic terrorist attack that took place during the annual Boston Marathon on April 15, 2013. Brothers Tamerlan and Dzhokhar Tsarnaev planted two homemade pressure cooker bombs that detonated near the finish line of the race 14 seconds and 210 yards (190 m) apart. Three people were killed and hundreds injured, including 17 who lost limbs.
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