Serbians are in shock in the aftermath of the double shootings that saw at least eight killed and 14 injured when a 21-year-old suspected shooter, Uros Blazic, opened fire in the town of Mladenovac, located 42 kilometres (26 miles) south of Belgrade.
And a teen boy opened fire on a school in Belgrade, killing eight students and a security guard.
After the two mass shootings in Serbia this week, here is a timeline of some of the worst shooting incidents in Europe in recent decades:
1980s
May 1987 - Belgium
A guy named Michael Van Wijnendaele went on a shooting spree in a farming community. He hurt his own parents-in-law and then killed six other people before shooting himself.
August 1987 - Britain
In England, a man named Michael Ryan went on a rampage in a town called Hungerford. He killed 16 people and injured 11 before taking his own life.
July 1989 - France
A farmer in France shot and killed 14 people, including some of his family members. The police caught him after he got injured.
1990s
September 1995 - France
A 16-year-old boy got into an argument with his parents and then went on a shooting spree in a town called Cuers. He killed 16 people before ending his own life.
March 1996 - Britain
In Scotland, a man named Thomas Hamilton went into a school and shot 16 children and their teacher. Then he killed himself.
2000s
April 2002 - Germany
A 19-year-old guy named Robert Steinhauser didn't want to take a math test, so he opened fire in his school. He killed 16 people, including teachers and students, before taking his own life.
November 2007 - Finland
A student named Pekka-Eric Auvinen used a handgun to kill six students, the school nurse, the principal, and himself at a high school near Helsinki.
September 2008 - Finland
Another student, Matti Saari, opened fire in a vocational school, killing nine students and a staff member before ending his own life.
March 2009 - Germany
A 17-year-old gunman went on a shooting spree at a school near Stuttgart, killing nine students, three teachers, and two other people. He was later killed by the police.
2010s
June 2010 - Britain
A man named Derrick Bird went around shooting people in different towns. He killed 12 people and injured 11 before taking his own life.
August 2010 - Slovakia
A gunman shot and killed six members of a Roma family and another woman in the capital city, Bratislava. He also wounded 14 more people before killing himself.
April 2011 - Netherlands
A guy named Tristan van der Vlis opened fire in a mall, killing six people before shooting himself.
July 2011 - Norway
Anders Behring Breivik carried out a bombing in Oslo and then went to a summer camp, where he shot and killed 69 people, mostly teenagers.
November 2015 - France
Terrorists attacked different places in Paris, including a music hall and a sports stadium, killing 130 people and injuring many more.
July 2016 - Germany
An 18-year-old guy, who was obsessed with mass killings, shot and killed at least nine people in Munich.
March 2023 - Germany
A gunman in Hamburg shot and killed six people at a Jehovah's Witness worship hall before taking his own life. Eight others were injured, including a pregnant woman who lost her unborn baby.
May 2023 - Serbia
In just one week, a 13-year-old boy shot and killed eight fellow students and a security guard at a school in Belgrade. Two days later, another gunman killed eight people and injured 14 in a village near the Serbian capital. Both suspects were arrested.
