Two Larimer County Sheriff's Office deputies and another man died in a head-on collision on U.S. Highway 12 in Idaho [1].

The incident marks a significant loss for the Colorado law enforcement community, as the deputies were killed far from their home jurisdiction while traveling near the Idaho border [2].

The crash occurred Thursday, June 18, 2026, at approximately 4 p.m. [1, 2]. According to investigators, the collision happened after a woman driving a truck attempted to pass another vehicle in a designated no-passing zone [1].

Three people died as a result of the impact [2]. The victims included the two deputies and one other man [1]. The woman driving the truck was also involved in the crash [1].

Authorities identified the location of the accident as a stretch of U.S. Highway 12 near the border between Idaho and Colorado [2]. The road is known for its challenging terrain, which can complicate passing maneuvers for drivers unfamiliar with the local restrictions.

Emergency responders arrived at the scene shortly after 4 p.m. [2] to manage the aftermath of the head-on impact. The Larimer County Sheriff's Office has not yet released further details regarding the identities of the fallen deputies.

“Three people died as a result of the impact”

This incident highlights the lethal risks associated with illegal passing maneuvers on rural highways. The loss of two active-duty deputies in a multi-state accident underscores the vulnerability of law enforcement officers during transit and the critical nature of adherence to road safety markers in high-risk zones.