A World War II-era hand grenade turned in at the Rexburg Police Department headquarters on East Main Street triggered a rapid emergency response Wednesday afternoon, prompting building evacuations, a street shutdown, and the dispatch of the Idaho Falls Bomb Squad to safely remove the device.
The incident began around 2:30 p.m. when a person walked into the Rexburg Police Department carrying the grenade. The individual had acquired it while purchasing militaria at an estate sale and, upon realizing what the item might be, brought it to authorities. Rexburg police said the person discovered what appeared to be the grenade among surplus items from the purchase.
Street Closed, Buildings Evacuated
Officers quickly moved to secure the area. Buildings adjacent to the police headquarters were evacuated, East Main Street was shut down to traffic, and an emergency alert was issued to the surrounding community. Law enforcement treated the situation with full precaution given the potential for the decades-old device to still be functional.
This type of incident is not unprecedented in the region. Unexploded ordnance was previously discovered in a Rexburg vehicle, prompting business evacuations near the downtown corridor — a reminder that old military items can resurface unexpectedly in civilian hands.
The Idaho Falls Bomb Squad, which serves as a regional resource for hazardous ordnance situations across eastern Idaho, traveled to Rexburg and took control of the scene. By 4:15 p.m., just under two hours after the incident began, bomb squad personnel had taken possession of the grenade. East Main Street was reopened shortly after, and the evacuation order was lifted.
No Threat to Public, Authorities Say
Rexburg police emphasized that the situation carried no indication of criminal intent. Investigators found no evidence the grenade had been brought to the police station as a threat to the public or anyone at headquarters. The device was assessed as an artifact from private militaria collecting rather than a deliberate act of violence or intimidation.
In a statement, Rexburg police credited the responding specialists, saying bomb squad personnel “professionally took possession of the device for safe destruction.” The grenade is set to be destroyed through proper ordnance disposal procedures, as first reported by the Idaho State Journal.
The episode highlights a recurring challenge for law enforcement: items from major 20th-century conflicts, including World War II, occasionally surface in estate sales, storage units, and personal collections — sometimes decades after they were originally acquired by veterans or collectors. While many such items have been rendered inert over time, age alone does not guarantee a device is safe, and bomb squad professionals stress that any suspected ordnance should be reported to authorities immediately rather than transported or handled by civilians.
Rexburg’s relatively swift resolution — under two hours from initial report to street reopening — reflects the preparedness of regional emergency responders and the value of having a trained bomb disposal unit accessible across Bonneville County and surrounding communities in East Idaho.
What Comes Next
The Idaho Falls Bomb Squad will carry out the safe destruction of the grenade. Rexburg police have not indicated that any charges are expected against the individual who turned in the device. Residents who encounter suspected military ordnance or explosive materials are urged to contact local law enforcement rather than attempt to move or inspect the items themselves.