On 28 February 2024, an unknown suspect threw an object at the feet of a child near a shopping mall in Basel, Basel-Stadt. The child took the object to a daycare to show friends, where it functioned in the child’s hand, injuring the child and seven others. The explosive device was originally believed to be a pyrotechnic device, but a father of one child later described the explosive as a “homemade bomb” with shrapnel. No further device details were provided. Authorities believe the suspect is between the ages of 20 and 22, per witness statements. The investigation is ongoing.
 

On 4 March 2024, local police officers and several fire departments responded to a hospital in Aachen after a 65-year-old female suspect barricaded herself inside a room and functioned unspecified pyrotechnics. The suspect was eventually arrested, and no further information has been released. 
 

Source stories here and here.
 

On 3 March 2024, at approximately 1730 hours local time, Hopkinton Police Department (HPD) received numerous reports of multiple explosions prompting officers to respond to a residence on Clarks Falls Road. At the scene, a 20-year-old male suspect was identified by police as having allegedly functioned binary explosives in an illegal manner. No additional device details have been released. Bomb technicians from the Rhode Island State Bomb Squad and personnel from both the Rhode Island State Fire Marshal’s Office and the Ashaway Fire Department were called in for assistance.

On 26 February 2024, Clearfield Regional Police officers responded to the 600 block of Williams Street to investigate a backpack found on the sidewalk. Inside of the backpack, police discovered four IEDs and bomb-making material (BMM), as well as drug paraphernalia. Centre County Explosive Ordnance Disposal technicians were called to the scene to assist in securing the IEDs. According to media reporting, the backpack allegedly belonged to a 46-year-old female suspect. Police searched the suspect’s residence and discovered additional BMM used for the IEDs.

Shortly after the 28 February 2024 arrest of a 46-year-old man in relation to a recent crime spree, police discovered the suspect had allowed natural gas to build up inside his home on the 9200 block Mockingbird Lane in Gilroy, which appeared to have been set up as an “explosive booby-trap.” The Gilroy Fire Department responded and secured the house. Investigators discovered that a stove had been set to emit natural gas within the residence and found several cell phones strewn around the home in what they believe was an attempt to remotely ignite the gas-filled house.