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On 31 May 2024, home surveillance footage captured an unknown person throwing an improvised incendiary device (IID) at a home on the 3400 block of Springside Drive in DeKalb County before fleeing the scene. The breaking of a window awoke the homeowner, and they extinguished the fire before it spread beyond the curtains. No injuries were reported. No further device details have been released, and an investigation is ongoing.
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On 2 June 2024, at approximately 1045 hours local time, San Mateo Police Department officers responded to a home on the 300 block of North Grant Street after receiving reports of a disturbance involving a couple sitting in a vehicle near the home. Officers searched the vehicle and discovered pyrotechnics and marijuana. A subsequent search of the home found 140 lbs. of pyrotechnics, 9 lbs. of marijuana, methamphetamine and an unregistered pistol with a silencer and ammunition.
On 1 June 2024, at approximately 0500 hours local time, an unidentified suspect at the University of California at Berkeley (UC) emplaced an improvised incendiary device (IID) underneath the back wheel of a police car, between the tire and fuel tank, and functioned it. UC Police responded and are leading the ongoing investigation. An anonymous online source took credit for the attack, claiming it was retaliation for the university’s response to the Israel-Hamas war. No further device-related details were provided.
On 30 May 2024, El Salvador’s National Police arrested seven suspects who had been involved in the nation’s 1980-1992 civil war after IEDs described as “small cylinders of explosives with fuses” and sacks of ammonium nitrate were found during a raid on a former rebel territory. The police posted images of the seized explosives to social media, alongside a note that the plot was intended to target gas stations, supermarkets, and government buildings. The suspects were arrested prior to the President’s inauguration on 1 June.
On 29 May 2024, a suspected bomb-maker was arrested for a string of attempted explosive device attacks on Jehovah's Witnesses in Graz-Umgebung, Styria, since August 2023. The suspect claimed to have targeted Jehovah’s Witnesses as a diversion to kill his ex-wife and also claimed to have attached an IED to his ex-wife's vehicle. Initial investigation of the vehicle only found a magnet used to attach the IED but no explosive device. On 3 June, investigators found the IED hidden behind some shoring at the rear of vehicle after lifting the car onto a platform.
On 5 June 2024, at approximately 1300 hours local time, Henry County Sheriff's Department (HCSD) deputies, Tennessee Bureau of Investigation special agents and the ATF arrested a 53-year-old male suspect after discovering an IED while searching his Buchanan residence. HCSD deputies initially responded to a 911 call made by the suspect reporting a drug overdose. Upon arrival, deputies discovered an IED described as a PVC pipe with black wires taped to it on the home's front porch.
On the evening of 2 June 2024, a 31-year-old male suspect threw a pyrotechnic device outside of his ex-girlfriend’s home in Ross Township after a gathering, causing a bush to ignite. The suspect departed the scene and later returned to assault another man who attended the gathering, throwing a whiskey bottle and beating him with brass knuckles. The suspect reportedly attacked the man because of his interactions with the suspect’s ex-girlfriend. Ross Township Police responded the following morning and discovered an IED under the victim’s car in the driveway.
On 27 April 2024, Onondaga County Sheriff’s Office deputies discovered that an incendiary device had damaged a mailbox after responding to reports of a loud noise at a residence in Salina. No injuries were reported, and no further device details were provided. An investigation found that the incident stemmed from a previous dispute. On 30 May 2024, two male suspects, ages 19 and 21, were arrested and charged with felony criminal possession of a weapon, possession of an explosive device with intent, and misdemeanor criminal mischief.
On 21 May 2024, Florida Department of Corrections officials conducted a planned search of the Lake Helen home of a 43-year-old man on probation. During the search, officials discovered petroleum jelly and model glue on the man’s prohibited items list outlined in his probation.
On 29 May 2024, at approximately 1900 hours local time, Los Angeles Police Department (LAPD) officers executing a search warrant discovered 2,000 lb of pyrotechnics while searching the garage of a home in the 1600 block of West 146th Street. LAPD Bomb Squad technicians responded to assist and removed the pyrotechnics. No injuries were reported.