On 10 January 2025, at approximately 0700 hours local time, the Napa County Sheriff’s Office, Napa Police Department, Napa Special Investigative Bureau, and Sonoma County Sheriff’s Bomb Squad executed a search warrant at a residence on the 300 block of Coombs Street in Napa and discovered unspecified bomb-making material (BMM). Authorities initiated an investigation after the 31-year-old male suspect allegedly purchased chemicals “known to be used for making destructive devices.” No additional details regarding the BMM were released.

On 12 January 2025, at approximately 0200 hours local time, an unspecified explosive device was functioned at the Red Cross hospital in Beverwijk. The device ignited a fire near the hospital’s supplier entrance, causing significant damage. No additional device details were provided. A local fire department extinguished the blaze. Three individuals were injured due to smoke inhalation. The investigation is ongoing.

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On 16 December 2024, Sandy Township Police Department officers responded to a residence on Eastern Avenue in DuBois after reports of a dispute between a 29-year-old male suspect and another man, who told responding officers that the suspect was setting off explosives and building bombs. Behind the home, officers found remnants of a 55-gallon barrel that had been used as part of an IED. The suspect reportedly described making and initiating the device by filling the barrel with propane and igniting it using a spark from an electric fly swatter.

On 15 December 2024, at approximately 0157 hours local time, Idaho State Police (ISP) troopers conducted a traffic stop near Heyburn Avenue and Blue Lakes Boulevard in Twin Falls. While inspecting the vehicle, officers discovered what was described as a “suspicious black tube” and a firearm. ISP called the Twin Falls Police Department Bomb Squad for assistance. Bomb technicians determined that the device was an incomplete IED containing buckshot and explosive powder and removed it from the scene.

On 17 December 2024, at approximately 0611 hours local time, the Investigative Committee of Russia, with the assistance of other local authorities, responded to a residential complex in Moscow after a male suspect functioned a radio-controlled IED, killing a Lieutenant General and his assistant. According to media reporting, the suspect attached the IED—containing explosives equal to 300 grams to 1 kg of TNT—to the handlebars of an electric scooter near the building's entrance, detonated the device remotely, and fled the scene.