■ May 22, 2017: A suicide bomber kills 22 people and injures dozens during an Ariana Grande concert at Manchester Arena in northern England.
■ April 7, 2017: A man driving a hijacked beer truck strikes pedestrians at a Stockholm department store, killing four people.
■ March 22, 2017: A man drives a rented SUV into pedestrians at London’s Westminster Bridge, killing four people. The attacker then stabbed a police officer to death.
■ Dec. 19, 2016: A hijacked truck plows through a Christmas market in Berlin, killing 12.
■ July 14, 2016: A truck driver targets Bastille Day revelers in Nice, killing 86.
■ March 22, 2016: Suicide attacks on the Brussels airport and subway kill 32 and injure hundreds. The perpetrators have been closely linked to the group that carried out earlier attacks in Paris.
■ Nov. 13, 2015: Islamic State-linked extremists attack the Bataclan concert hall and other sites across Paris, killing 130 people. A key suspect in the attack is arrested in Brussels on March 18, 2016.
■Feb. 14, 2015: A gunman kills a Danish filmmaker and wounds three police officers in Copenhagen. A day later the gunman attacks a synagogue, killing a Jewish guard and wounding two police officers before being killed.
■Jan. 7-9, 2015: A gun assault on the Paris offices of the satirical magazine Charlie Hebdo and an attack on a kosher grocery store kill 17 people. Al Qaeda in the Arabian Peninsula claims responsibility for the attack, saying it was in revenge for depictions of Mohammed.
■ May 24, 2014: Four people are killed at the Jewish Museum in Brussels by an intruder with a Kalashnikov. The accused is a former French fighter linked to the Islamic State in Syria.
■ May 22, 2013: Two Al Qaeda-inspired extremists run down British soldier Lee Rigby in a London street, then stab and hack him to death.
■ March 2012: A gunman claiming links to Al Qaeda kills three Jewish schoolchildren, a rabbi, and three paratroopers in Toulouse, southern France.
■ July 22, 2011: An anti-Muslim extremist plants a bomb in Oslo then launches a shooting massacre on a youth camp on Norway’s Utoya island, killing 77 people, many of them teenagers.
■ Nov. 2, 2011: The offices of Charlie Hebdo in Paris are firebombed after the satirical magazine runs a cover featuring a caricature of Mohammed. No one is injured.
■ March 2, 2011: An Islamic extremist shoots two US airmen to death at Frankfurt airport after apparently being inspired by a fake video purporting to show American atrocities in Afghanistan.
■ July 7, 2005: Fifty-two commuters are killed in London when four Al Qaeda-inspired suicide bombers blow themselves up on three subway trains and a bus.
■ March 11, 2004: Bombs on four Madrid commuter trains in the morning rush hour kill 191 people.
SOURCE: Associated Press
