On 1 June 2024, at approximately 0400 hours local time, an improvised incendiary device (IID) functioned under a UC Berkeley police car that was parked in front of the campus police station. The device was emplaced near the fuel tank, partially burning the police car when it functioned. The suspect believed responsible for the fire allegedly set three other fires—one on 13 June outside a campus building, a second on 16 June at a construction site on campus, and the third on 16 June on a campus hilltop.

On 24 June 2024, at approximately 1350 hours local time, Los Angeles Fire Department (LAFD) firefighters responded to a homeless encampment at 15700 W. Burbank Blvd. in Van Nuys for a half-acre of burning grass. As crews arrived, unspecified materials involved in the fire exploded, injuring 10 firefighters and critically wounding 1. The Los Angeles Police Department Bomb Squad and LAFD Arson Division responded to assist, examined the scene, and discovered what appeared to be a hand grenade and suspicious devices described as cylindrical objects.

On 23 June 2024, at approximately 1800 hours local time, an unmanned aircraft system (UAS) dropped an explosive device that functioned in the parking lot of the Central de Abasto marketplace in Acapulco, Guerrero State. The explosion came after armed men approached merchants in the market and attempted to extort them. No injuries were reported due to the blast. Municipal law enforcement officers responded to the scene and discovered remnants of the device.

On 5 June 2024, at approximately 0430 hours local time, a 911 caller reported a loud noise near the 1700 block of South Ocosta Street in Westport. Westport Police Department (WPD) officers responded to the scene but were unable to locate the source of the noise. Later that morning, at approximately 1100 hours, Grays Harbor Sheriff’s Office (GHSO) deputies were contacted by a man who stated that his pickup truck had been damaged by an explosion, resulting in several shattered windows and the truck bed canopy being blown off.

On 8 June 2024, police responded to the 2100 block of Rollingridge Lane in Green Township after a suspect functioned homemade pyrotechnics, damaging a home and truck. The suspect admitted to using a mixture of potassium chlorate and other chemicals purchased online to manufacture the explosive mixture, which he placed in a log. The 18-year-old suspect claimed he was trying to build his own firework. He was arrested and charged with unlawful possession of dangerous ordnance and criminal damaging and endangering.