A deadly pedestrian collision in north Phoenix prompted a major emergency response Saturday morning, with authorities closing portions of Deer Valley Road while investigators examined the scene.

The crash occurred along Deer Valley Road, where a pedestrian was struck by a vehicle. Emergency crews responded to the location, but the pedestrian died as a result of the collision.

Police closed sections of the roadway while investigators worked to determine exactly how the crash happened. The closure created traffic disruptions for motorists using the busy north Phoenix corridor.

Investigators are expected to examine the vehicle involved, roadway conditions and available witness information as they reconstruct the moments leading up to the fatal impact. Authorities have not yet released all details surrounding the circumstances of the collision.

Fatal pedestrian crashes can require lengthy investigations because officers must determine factors such as vehicle movement, visibility, traffic conditions and the actions of everyone involved.

Drivers traveling through the area were urged to avoid the affected section of Deer Valley Road and use alternative routes while the investigation continued.

The incident has also renewed attention to pedestrian safety on major Phoenix roads. Busy arterial streets can present significant risks for people walking near or across high-traffic corridors, particularly when visibility or traffic conditions are challenging.

Authorities are expected to provide additional information as the investigation progresses.