BOOM — The Hind Rajab Foundation filed an urgent criminal complaint with the Belgian federal prosecutor on July 20, 2026, against an IDF veteran who attended the Tomorrowland festival. The complaint alleges the man was involved in war crimes committed in Gaza during Israeli military operations while serving in an Israeli military unit deployed in Gaza City and Rafah between October 2023 and November 2024.

The filing occurred on July 20, 2026, the same day the first weekend of the electronic music festival concluded. The event is held annually over two weekends at a park near the town of Boom, between Antwerp and Brussels. The second weekend was scheduled to take place the following week.

The Hind Rajab Foundation is a Brussels-based pro-Palestinian organization. It stated that the suspect is an IDF soldier who remained in Belgium after the festival. The group requested urgent investigative and preventive measures from the Belgian federal prosecutor to ensure the suspect remains available to Belgian judicial authorities.

The legal submission focuses on the destruction of Palestine Square and surrounding buildings in Gaza's Rimal neighborhood in December 2023. The Hind Rajab Foundation claims its investigation indicates that numerous civilian buildings were systematically destroyed using armored vehicles, military bulldozers, and controlled explosions. The damaged structures cited in the complaint included residential buildings, commercial properties, public offices, and educational facilities, including the Atfaluna Society for Deaf Children.

The foundation submitted evidentiary material concerning the suspect's military service, deployment, unit affiliation, and alleged connection to the actions described in the complaint. This action follows a previous legal effort at the same festival. On July 18, 2025, the Hind Rajab Foundation and another nonprofit group filed a complaint in Belgium against two young Israelis present at the Tomorrowland festival.

The Belgian federal police detained and questioned the two men following the July 2025 complaint. The two men detained in July 2025 were released and permitted to leave Belgium, and no substantive legal proceedings were opened against them. On July 29, 2025, the Belgian federal prosecutor referred the case of the two detained Israelis to the International Criminal Court for further handling.

Dyab Abou Jahjah, the Hind Rajab Foundation founder and director general, addressed the new filing. "By filing this complaint in Belgium, we are challenging the culture of impunity that has protected perpetrators of crimes against Palestinians for decades," he said. He added that "The presence of an alleged perpetrator on Belgian territory creates both an opportunity and an obligation for the Belgian authorities to act."

Abou Jahjah is a 54-year-old Lebanese Shi'ite Muslim affiliated with Hezbollah. He grew up in the Bint Jbail district and received Belgian citizenship after marrying a Belgian citizen, whom he has since divorced. He is barred from entering the U.K. and appears on a list of individuals prohibited from flying over U.S. airspace.

Since 2024, the Hind Rajab Foundation has filed more than 90 criminal complaints and other legal submissions in more than 30 countries. Most of the legal submissions filed by the Hind Rajab Foundation since 2024 were dismissed outright. Procedural developments regarding Hind Rajab Foundation complaints took place in countries including Brazil, Peru, Canada, and Greece.