A man killed several people on Saturday as he drove a van into a group of patrons sitting outside a restaurant in the old city centre in Germany, before taking his own life, police said, marking one year to the day after the Stockholm truck attack.
Here are some of the deadly attacks in Western Europe in recent years:
March 23, 2018
A gunman kills three people in southwestern France after holding up a car, firing on police, and taking hostages in a supermarket, screaming slogans. Security forces storm the building and kill him.
August 17, 2017
A van ploughs into crowds in the heart of Barcelona, killing at least 13 people, a regional official says, in what police said they were treating as a terrorist attack.
June 3, 2017
Three attackers ram a van into pedestrians on London Bridge, then stab revellers in nearby bars, killing eight people and injuring at least 48. Daesh says its militants are responsible.
May 22, 2017
A suicide bomber kills 22 children and adults and wounds 59 at a packed concert hall in the English city of Manchester, as crowds began leaving a concert by US singer Ariana Grande.
April 7, 2017
A truck drives into a crowd on a shopping street and crashes into a department store in central Stockholm, killing five people and wounding 15 in what police call a terrorist attack.
March 22, 2017
An attacker stabs a policeman close to the British parliament in London after a car ploughs into pedestrians on nearby Westminster Bridge.
Six people die, including the assailant and the policeman he stabbed, and at least 20 are injured in what police call a “marauding terrorist attack”.
December 19, 2016
A truck ploughs into a crowded Christmas market in central Berlin, killing 12 people and injuring 48. German Chancellor Angela Merkel says authorities are assuming it was a terrorist attack.
July 26, 2016
Two attackers kill a priest with a blade and seriously wound another hostage in a church in northern France before being shot dead by French police. French President Francois Hollande says the two hostage-takers had pledged allegiance to Daesh.
July 24, 2016
A Syrian man wounds 15 people when he blows himself up outside a music festival in Ansbach in southern Germany. Daesh claims responsibility.
July 22, 2016
An 18-year-old German-Iranian gunman apparently acting alone kills at least nine people in Munich. The teenager had no extremist ties but was obsessed with mass killings. The attack was carried out on the fifth anniversary of twin attacks by Norwegian mass murderer Anders Breivik that killed 77 people.
July 18, 2016
A 17-year-old Afghan refugee wielding an axe and a knife attacks passengers on a train in southern Germany, severely wounding four, before being shot dead by police. Daesh claims responsibility.
July 14, 2016
A gunman drives a heavy truck into a crowd celebrating Bastille Day in the French city of Nice, killing 86 people and injuring scores more in an attack claimed by Daesh. The attacker is identified as a Tunisian-born Frenchman.
June 14, 2016
A Frenchman of Moroccan origin stabs a police commander to death outside his home in a Paris suburb and kills his partner, who also worked for the police. The attacker told police negotiators during a siege that he was answering an appeal by Daesh.
March 22, 2016
Three Daesh suicide bombers, all Belgian nationals, blow themselves up at Brussels airport and in a metro train in the Belgian capital, killing 32 people. Police find links with attacks in Paris the previous November.
November 13, 2015
Paris is rocked by multiple, near-simultaneous gun-and-bomb attacks on entertainment sites around the city, in which 130 people die and 368 are wounded. Daesh claims responsibility.
Two of the 10 known perpetrators were Belgian citizens and three others were French.
January 7-9, 2015
Two extremists break into an editorial meeting of satirical weekly Charlie Hebdo on January 7 and rake it with bullets, killing 17. Another militant kills a policewoman the next day and takes hostages at a supermarket on January 9, killing four before police shoot him dead.
May 24, 2014
Four people are killed in a shooting at the Jewish Museum in central Brussels. The attacker was French national Mehdi Nemmouche, 29, who was subsequently arrested in Marseille, France. Extradited, he is awaiting trial in Belgium.