On 26 September 2024, a 27-year-old male suspect was arrested after police officers recovered pyrotechnics and bomb-making material (BMM), including explosive substances from disassembled pyrotechnics that had been wrapped in tin foil, long nail cartridges that were also wrapped in foil, BB pellets, and green wire, from his residence on 77th Street in Elmhurst. The search was conducted as part of an investigation into the suspect, who had told an acquaintance that he was constructing IEDs to target a small hostel in Queens used to temporarily house migrants from the U.S. southern border.

On 27 September 2024, a 65-year-old man drove up to a traffic checkpoint outside a Trump campaign rally in Walker and held up a bottle to City of Walker Police Department officers, claiming that it was a C4 explosive. The suspect then sped past the checkpoint and ignored police commands to stop until he reached a parking area, where he began to throw bags of fertilizer out of his vehicle to make it appear as though he was in possession of explosives. The suspect was arrested, and a search of his vehicle did not result in the discovery of any explosives.

On 26 September 2024, Pocatello Police Department (PPD) officers responded to a residence on the 300 block of Roosevelt Avenue in Pocatello after a contractor working in the home observed possible explosive devices in a cardboard box and multiple firearms. PPD officers examined the explosive devices, described as 15 to 20 pipe bombs constructed with “rigid pipes, 6 to 7 inches long, with end caps at both ends, and a fuse protruding from one end.” The Idaho Falls Police Bomb Squad was called to assist in handling the IEDs. No additional IED details were released.

On 2 October 2024, at approximately 0830 hours local time, Emeryville Police Department officers responded to the 1400 block of 67th Street in Emeryville after a suspicious device was discovered near the roll-up door of a business. Alameda County Sheriff’s Office Explosive Ordnance Disposal technicians responded to assist, examined the device, and used a bomb disposal robot to drop an explosive charge near the device, disposing of it. The debris were sent out for further examination. The investigation is ongoing. 
 

On 23 September 2024, at approximately 0100 hours local time, a commercial explosive device described as being “industrially manufactured” functioned between two public safety vehicles parked on De los Deportes Avenue outside of a concert at a national fair in Zacatecas. Local police and civil protection officers searched under cars in the area and discovered three more explosive devices that had not been functioned. The devices were removed, and the military took possession of them. Fragmentation from the explosion injured 14 people, including 3 state police officers.