Timeline of Europe's terror attacks
Paris, January 7, 2015: A massacre at the offices of satirical magazine Charlie Hebdo saw 12 people killed by two masked Al-Qaeda gunmen. A shootout with police followed. Related attacks and shootings around Paris in the aftermath saw another five killed and a total of 22 with serious injuries.
Copenhagen, February 15, 2015 Two people were killed and fibe police officers injured after a gunman went on a rampage with three separate shootings in the Danish capital.
Villejuif, France, April 19, 2015 French police foiled what they described as an "imminent terror attack" after a 24-year-old suspected Islamic extremist shot himself in the leg. After a weapons arsenal was discovered in his home and car. He was arrested and told admitted to police he was planning an attack on churches.
Paris, November 13, 2015 A number of coordinated terror attacks in the French capital left 130 dead and hundreds more injured. The attacks started with an explosion at the Stade de France as 81,000 watched an international soccer match. It was followed by shootings at bars, restaurants and popular night life spots, including the Bataclan concert hall. Here, 89 people died as gunmen fired Kalashnikov-type assault rifles into the crowd
Brussels, March 22, 2016 Two bombs were set off at the city's international airport before a third was detonated at a subway station near the EU parliament as 32 people were killed by three bombers.
Magnanville, June 13, 2016 Two police officers were killed in the Paris suburbs with the country on high alert as it hosted Euro 2016. They were stabbed to death.
Nice, July 14, 2016 As people gathered on a promenade on the French Riviera to celebrate Bastille Day, France's national holiday, a man driving a truck drove into the crowds. He was shot by police who tried to prevent him from travelling further. Their efforts came too late as 84 people were killed.
Normandy, July 26, 2016 Two men were shot dead after taking six hostages and murdering a priest in a church in Normandy. They were seen filming themselves preaching in Arabic and made the priest kneel on the ground before he was murdered in front of his parishioners.
Berlin, December 19, 2016 An international manhunt was sparked after a Tunisian man drove into a crowd at a Christmas market, killing 12 and injuring 56. Four days later he was killed in a shhotout with police in northern Italy.
London, March 22, 2017 Four people were killed and 50 others injured when a 52-year-old man drove at pedestrians on Westminster Bridge before crashing into a fence near parliament. He then stabbed a police officer to death before he was shot by an armed police officer.
Stockholm, April 7, 2017 A hijacked truck drove into crowds killing five and injuring 15 others. Local police said the attacker intentionally targeted young people by driving into a busy shopping street.
Paris, April 20, 2017 One police officer was killed and two more injured in another attack in the French capital. A tourist was also injured. The attacker had previously served a 12 year jail sentence for attacking police officers. He was found in possession of a note praising Isil.
Manchester, May 22, 2017 A suicide bombing at an Ariana Grande concert at Manchester Arena killed 22 people as they left the venue. Police said Salman Ramadan Abedi, used nail bomb-styled device to target children and cause as much damage as possible. It was the deadliest UK attack since the 2005 London bombings. There have been 18 arrests in connection to the attack and 12 remain in police custody.