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 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 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 23 May 2024, at approximately 0130 hours local time, three unidentified suspects used explosive devices against two ATMs at a bank in Friedrichroda in the district of Gotha, Thuringia, before fleeing the scene. It is unclear how much money was stolen. Witnesses reported hearing the two explosions, which destroyed the ATMs and the building housing them. No injuries were reported. No additional devices were discovered, and no device related details have been released. The investigation is ongoing.
 

On 20 May 2024, local authorities discovered a cache of explosives and drugs buried in a cemetery in Oroklini. The cache consisted of IEDs, one of which was an armed radio controlled IED (RCIED) with a cell phone; a rocket launcher with three munitions; several cartridges; and military grade firearms. Two male suspects, ages 46 and 35, were arrested in connection with the discovery. The older suspect was previously observed by police engaging in suspicious activity at the cemetery.