NORTH COAST, Calif. — The Santa Rosa Police Department reported that it is investigating the circumstances that led to a U.S. Postal Service worker being struck and killed by a vehicle on Monday evening.

The crash victim was identified as Irvin Hernandez, 33, of Santa Rosa.

On Monday at approximately 5:05 p.m., Santa Rosa Police officers, fire, and medical personnel were dispatched to the intersection of Northpoint Parkway and Corrigan Street for a major collision involving a U.S. Postal Service vehicle and GMC Denali SUV.

Police said the SUV ended up in the front yard of a residence on Corrigan Street and the postal vehicle was in the middle of Northpoint Parkway, near the dead end.

Multiple 911 calls to Santa Rosa Police Dispatch reported that there was a male victim lying in the roadway, and he appeared to be deceased. Callers indicated that this male was the driver of the postal vehicle.

The driver of the SUV was conscious and appeared to be having a medical emergency. He had remained in the SUV after the collision, police said.

Police officers arrived on scene with medical personnel. Authorities said the male victim in the roadway was pronounced deceased immediately. The driver of the SUV was transported to a local hospital and treated for minor injuries.

Santa Rosa Police Department accident investigators and evidence technicians arrived and took over the investigation.

Based on witness statements and surveillance video from area residences, authorities said it appeared that the driver of the SUV was driving erratically prior to the collision and struck the postal vehicle and driver as he was standing outside the vehicle, sorting mail.

The preliminary investigation showed that the driver of the SUV suffered a medical emergency that caused him to lose control of the SUV, prior to the collision, police said.

The roadway was closed for several hours during the investigation. Santa Rosa Police worked in conjunction with representatives of the postal service throughout the investigation.

Anyone with information related to this investigation is encouraged to contact Officer John Fisher, telephone 707-543-3600, Extension 8550.