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September 11, 2001 - Two commercial airplanes are hijacked, and crashed into the World Trade Center complex in New York City, and a third plane crashes into the Pentagon. 2,996 people die and over 6,000 are left injured.

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March 11, 2004 - Bombs are detonated in four Madrid commuter trains during the morning rush hour, killing over 191 people and injuring around 2,000.

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July 7, 2005 - Suicide bombers blow themselves up in London. The targets are three underground trains and a bus. The attack kills 52 people and injures over 700.

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March 2, 2011 - Two U.S. airmen are shot dead and two people are injured in an attack at Frankfurt Airport.

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July 22, 2011 - Far-right terrorist Anders Behring Breivik plants a car bomb in Oslo followed by a mass shooting at a youth camp on Norway's Utoya island. The attack kills 77 people, mostly teenagers.

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March 11-19, 2012 - Mohammed Merah carries out attacks in Toulouse and Montauban, France. He kills three Jewish schoolchildren, a rabbi, and three French Army soldiers.

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April 15, 2013 - Two homemade bombs are detonated close to the finish line of the Boston Marathon, killing 3 people and injuring about 264.

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May 22, 2013 - British Army soldier Lee Rigby is attacked and killed in a London street.

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May 24, 2014 - Four people are killed in a terrorist attack at the Jewish Museum in Brussels.

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January 7-9 , 2015 - Terrorists attack Charlie Hebdo's offices in Paris, and conduct four other attacks around the city. In total, 17 people are killed.

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November 13-14, 2015 - A number of terrorist attacks, including suicide bombings and mass shootings, kill 130 people and injure hundreds more in Paris, France.

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December 2, 2015 - A couple conducts a mass shooting and kills 14 people in San Bernardino, California. Around 22 people are seriously injured.

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March 22, 2016 - Two suicide bombings take place in Belgium. One at Brussels Airport and the other in the city's subway. 32 people die in the attacks.

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June 12, 2016 - A mass shooting kills 50 people at a gay nightclub in Orlando, Florida.

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July 14, 2016 -

A truck drives through a crowd on Bastille Day in Nice, France. 86 people die in the attack and 304 spectators are taken to hospital with injuries.

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July 26, 2016 - Two men take five people hostage during a Mass at a church in Normandy, France. They kill the priest.

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November 28, 2016 - An Ohio State University student drives his car into a group of students and stabs people with a butcher knife.

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December 19, 2016 - A terrorist drives a truck through a Christmas market in Berlin, Germany, killing 12 people.

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March 22, 2017 - A man drives his car into pedestrians outside the Palace of Westminster in London. Four people are killed and more than 40 injured. 

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April 7, 2017 - A man drives into a pedestrian shopping street and department store in Stockholm, Sweden. The attack kills 5 people and injures over a dozen.

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May 22, 2017 - A suicide bomber detonates a device in the foyer area of the Manchester Arena during an Ariana Grande concert. 22 people were killed and dozens more are left injured.

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June 3, 2017 - Terrorists plow through pedestrians on London Bridge and stab people in Borough Market. The London attack kills 8 people and injures almost 50.

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August 17, 2017 - A number of attacks take place in Barcelona and Cambrils (Tarragona), Spain, including a van being driven into pedestrians, killing 14 people.

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Sept. 15, 2017 - A bucket bomb explodes on the London tube. 30 people are injured but there are no fatalities. 

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October 27, 2018 - A man shoots and kills 11 people in Pittsburgh's synagogue in the US. 

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October 31, 2017 - A man drives a truck into a crowd of pedestrians and cyclists on a bike path in New York City. 8 people die in the attack.

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March 15, 2019 -

A terrorist attack kills at least 49 people in two mosques in Christchurch, New Zealand. 

See also: Serial killers: these are the men who claimed the most lives

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