The Medical Examiner’s Office has identified the 66-year-old man who died Thursday after the moped he was driving struck a pickup truck in Aiea as Richard Sanford.

An autopsy will be done on Sanford, who lived in Aiea, to determine the cause of death.

Police said the man was driving east on Moanalua Road near Ualo Street when his moped crossed the centerline and struck the truck about 2:45 p.m.

He was taken in critical condition to Queen’s Medical Center, where he later died, police said.

Sanford was Oahu’s fourth traffic-related death this year compared to five for the same period last year.