On 6 June 2024, at approximately 1230 hours local time, Arapahoe County Sheriff's Office (ACSO) Bomb Squad technicians responded to the Cherry Creek Dam Spillway in Cherry Creek State Park in Aurora for potential explosive devices. At approximately 1400 hours local time, bomb technicians discovered two IEDs. Per a picture from ACSO, one IED was cylindrical in shape and wrapped with red tape on one half and black on the other. The other IED pictured was cylindrical, wrapped in black tape, and capped on both ends. ACSO described the devices as similar in appearance to homemade pyrotechnics.

On 5 June 2024, at approximately 0915 hours local time, Ventura County Sheriff’s Office deputies responded to Rio Mesa High School after two students functioned an improvised incendiary device (IID) at the school. The students ignited a small aerosol can inside a trashcan, injuring one staff member. The 16-year-old male students were arrested on possession of a destructive device, explosive with intent to injure/intimidate, and arson of property, among other charges.
 

On 8 June 2024, Mesa Police Department (MPD) officers discovered several boxes with more than 50 illegal pyrotechnics during a vehicle traffic stop. The two occupants of the vehicle, a 47-year-old man and a 22-year-old man, allegedly planned to resell the fireworks in Mesa. They were arrested and charged with possession of illegal fireworks and illegal fireworks for sale. Hours later, MPD officers conducted a separate traffic stop of a 27-year-old male driver and discovered similar boxes of illegal pyrotechnics.

On 9 June 2024, at approximately 1835 hours local time, an explosive device functioned in the El Zócalo town square in Acapulco, Guerrero State. Nine people were injured in the attack. Mexican National Guard personnel and local police responded to the scene. Officials have not yet released incident details, although open source reporting suggests that either unknown person(s) threw an explosive device into the crowded square or an unmanned aircraft system (UAS) dropped an explosive device. No device details have been released. An investigation is ongoing.
 

On 12 June 2024, protestors threw improvised incendiary devices (IIDs), described as Molotov cocktails, and clashed with police following a vote by the Argentinian Senate on controversial legislation supported by the president. Cars were also set ablaze during the protests, and police officers deployed water cannons and tear gas to disperse protestors. Multiple individuals were injured during the event, including protestors, legislators, and police officers. At least 10 people were arrested in connection with the event.