# Overasselt armed gang attack and investigation > Live situation record from CLSTR: https://clstr.news/situations/overasselt-armed-gang-attack-and-investigation > Updated: 2026-09-06T10:37:49.000Z. Sources: 39. Developments: 4. On September 1, a heavily armed, masked group of approximately 30 individuals launched a violent assault on a residence in Overasselt, Netherlands. The attack resulted in the death of 51-year-old security guard Berry Leenders and injuries to two police officers. Prosecutors described the group as an international criminal organization, and investigators believe the raid was a revenge operation related to a drug conflict involving cocaine trafficker Jos Leijdekkers. As of September 6, the number of suspects in custody has risen to 35 following the arrest of a 26-year-old Belgian man in Amsterdam. Previously, 32 suspects—aged 16 to 32—had been brought before a judge facing charges of murder, manslaughter, and attempted murder. The intended target was reportedly 28-year-old Jan G., a man with prior drug convictions. In the aftermath, police have conducted large-scale searches using metal detectors in fields and roads near the target residence, as well as a raid on a vacant house in Nederasselt. While some residents report a sense of returning calm, there has been public frustration regarding the lack of an NL-Alert during the incident. A fundraising campaign for Leenders’ family has increased its target to 22,000 euros. Additionally, a planned memorial service for the victim at the Carolus Magnus student association in Nijmegen was canceled due to safety considerations, despite police not issuing a formal negative advisory regarding the event. ## Claims - The 32 murder suspects are accused of acting as a gang. (disputed by 9 sources) - Police arrested 34 people following the attack. (disputed by 7 sources) - The suspects are aged between 16 and 32 years. (corroborated by 9 sources) - The suspects include nationals from France, the Netherlands, Algeria, Libya, Ukraine, and Belgium. (corroborated by 9 sources) - Two police officers sustained serious injuries during the incident. (corroborated by 7 sources) - A security guard was killed during the attack. (corroborated by 6 sources) - The attack is believed to be linked to a conflict between drug gangs over a cocaine shipment. (corroborated by 6 sources) - Authorities seized numerous weapons, including Kalashnikovs. (corroborated by 3 sources) ## Timeline ### 2026-09-06: Overasselt violence: Belgian man arrested in connection with fatal shooting Police arrested a 26-year-old Belgian man in Amsterdam following a violent raid in Overasselt that left a security guard dead and two officers wounded. Total arrests have reached 35 suspects. 5 sources. https://clstr.news/cluster/overasselt-violence-belgian-man-arrested-in-connection-with-fatal-shooting ### 2026-09-05: Overasselt residents recover following fatal shooting investigation Five days after the fatal shooting of security guard Berry Leenders, police continue large-scale investigations in Overasselt and Nederasselt as the community attempts to recover. 2 sources. https://clstr.news/cluster/overasselt-residents-recover-following-fatal-shooting-investigation ### 2026-09-03: Overasselt attack: 32 suspects face murder charges Thirty-two suspects face murder charges following a violent, armed attack in Overasselt, Netherlands, which left a security guard dead and two police officers injured. The attack is linked to drug gang conflict 14 sources. https://clstr.news/cluster/overasselt-attack-32-murder-suspects-detained-after-violent-raid-in-netherlands ### 2026-09-01: Overasselt shooting: One dead and 34 arrested after armed gang attack A deadly armed assault in Overasselt, Netherlands, left one security guard dead and two police officers wounded. Police have arrested 34 suspects in what is suspected to be a drug-related revenge attack. 26 sources. https://clstr.news/cluster/overasselt-shooting-leaves-one-dead-and-two-police-officers-injured --- Cite as: Overasselt armed gang attack and investigation. CLSTR, https://clstr.news/situations/overasselt-armed-gang-attack-and-investigation