Los Angeles: On 3 December 2025, at approximately 2130 local time, Los Angeles Police Department (LAPD) and bomb squad in Los Angeles, responded to a residential neighborhood after an accidental detonation of an improvised pyrotechnic device comprised of homemade fireworks. A juvenile was pronounced dead upon arrival at a nearby hospital. The explosion occurred near the 400 block of E. 84th Place.

Kansas City: On 28 December 2025, around 0030 local time, someone shattered a window using an explosive device at the Iglesia Cristiana Bethel Church of God, in the Turner neighborhood, at South 49th Street and Oak Grove Road. Police said they have evidence indicating that an illegal explosive device, similar to an M-80, was placed on the church's windowsill, where it detonated. The building is constructed of bricks, and the blast cracked some bricks, left char marks on the windowsill, and shattered glass in the room.

Cherry Hills Village: On 30 December 2025, Cherry Hills Village Police released information about a vandal using improvised explosive devices (IEDs) to commit acts of vandalism along the Highline Canal Trail in Cherry Hills Village over the past two months. The male suspect appears to strike between midnight and early morning hours. The suspect was captured on camera during an incident that took place in the early morning hours of 18 December 2025. The devices were described as small, crude, homemade devices using either pill bottles or PVC pipe. 

Stamford: On 2 December 2025, Stamford Police Department responded to a private residence and engaged in an hour-long standoff following an eviction attempt by a State Marshal earlier that morning. The 63-year-old male suspect released his wife and then barricaded himself inside. He then reportedly exchanged fire with the police using an AK-47. After breaching the residence, police found the suspect had died from suicide. Police reported the home was rigged with grenades, pipe bombs, and Molotov cocktails.

Pueblo: On 17 December 2025, Pueblo Police, the FBI, and the Bureau of Alcohol, Tobacco, Firearms, and Explosives served a search warrant on the residence of a 57-year-old male suspect. During the search, police seized eight firearms, drugs, ammunition, two non-functioning explosive devices, and other assorted items. The report did not specify the reason why the explosive devices were inoperable. The suspect was arrested and charged with possession of a controlled substance with intent to distribute, failure to appear, and as a special offender.