A pedestrian died after being struck by an on-duty California Highway Patrol motorcycle officer in Bixby Knolls early Sunday.

Authorities said the crash happened on Del Amo Boulevard west of Cherry Avenue at about 4:40 a.m. The pedestrian died at the scene, Long Beach police spokeswoman Shaunna Dandoy said.

CHP officials identified him as 24-year-old Cezannie Mount of Long Beach. He sustained blunt force trauma.

The officer, who sustained major injuries in the crash, was transported to Long Beach Memorial hospital where he was undergoing treatment for head trauma in the intensive care unit, the CHP said.

Authorities said the officer was traveling west on Del Amo, east of Orange Avenue, in the No. 1 lane of three lanes at an unknown speed when he struck the pedestrian. The pedestrian was crossing the street north from a center median, mid-block, and not within a marked crosswalk.

“Mount was knocked down and landed in the number one lane, sustaining fatal injuries,” stated CHP Officer Hector Castaneda, who is handling the investigation.

The officer was thrown from his motorcycle and landed in the No. 3 lane, several yards west of Mount, Castaneda added.

Del Amo was closed between Cherry and Orange avenues as traffic-collision detectives continued working the scene late Sunday morning.

There is no sidewalk on the south side of Del Amo Boulevard, between Brayton and Gardenia avenues, which are about a block in from Orange and Cherry avenues.

Editor’s note: This story has been updated with information from CHP about the victim and officer. It was also updated to correct an erroneous spelling of Cezannie provided by the CHP.