Just after 11 p.m. Thursday night, a two-deputy patrol car from the West Hollywood Sheriff’s Station was involved in a traffic collision killing one male pedestrian, and injuring another pedestrian and both deputies.

According to the Los Angeles County Sheriff’s Department, the patrol car was traveling eastbound on Santa Monica Boulevard with emergency lights and sirens on in response to a reported domestic assault.

The deputies’ patrol car collided with another vehicle in the 8800 block of Santa Monica Boulevard near the intersection of Palm Avenue.

Immediately after the initial collision, the deputies’ patrol car careened onto the sidewalk and struck two pedestrians before striking a light pole and a tree.

Two deputies in the patrol car and the two pedestrians were injured during the collision. All four were transported to local hospitals for evaluation and treatment.

Shortly after, one of the pedestrians, who has not yet been identified, succumbed to his injuries. The second male pedestrian sustained serious injuries, which are not believed to be life-threatening. He is being treated at a local area hospital. Both deputies sustained serious injuries that are described as non-life-threatening. They are listed in stable condition.

The city of West Hollywood released a statement Friday morning.

“The city is deeply shaken and saddened by this tragic accident and death. Public safety is the city of West Hollywood’s number-one concern,” the statement read.

Names and identities have not been released as of 11 a.m. Friday.

The California Highway Patrol’s Multidisciplinary Accident Investigation Team is conducting an independent investigation into the collision.

Both directions of Santa Monica Boulevard, between San Vicente Boulevard and Hancock Avenue are closed to all traffic as of 11:30 a.m. while authorities conduct the investigation.

Anyone with information regarding the collision should contact the California Highway Patrol at (310)642-3939.

West Hollywood is urging people who need counseling as a result of the incident to seek support through the Maple Counseling Center at (310)271-9999.