A pedestrian was killed Sunday night after being struck in a hit-and-run collision on the Nimitz Highway on-ramp onto H-1 Freeway in Kalihi, Honolulu police said.

Honolulu Emergency Medical Services said paramedics responded to the pedestrian accident on the on-ramp and found an approximately 40-year-old man “with injuries incompatible with life.”

EMS said the man was dead on arrival and that the cause of injuries was “undetermined. “

Police said motorist was traveling west on H-1 Freeway and collided with an unidentified man attempting to cross the freeway.

The unknown motorist fled and has yet to be identified, police said.

Speed appears to be a factor in this collision, and it is unknown if drugs or alcohol are factors, police said.

Police ask anyone with information about the incident to call the HPD Traffic Division at (808) 723-3413.

HPD closed H-1 westbound, from Nimitz Highway, about 9:10 p.m. for several hours as they responded and investigated.

This is the 35th traffic fatality on Oahu this year, compared with 29 at the same time in 2022.