A Caltrans worker who was struck by a vehicle in a construction zone west of Martinez has died, state officials announced Thursday.

According to Gov. Gavin Newsom's office, 39-year-old Mahdi Khorram died Thursday. Khorram was working in a construction zone on westbound Highway 4 just before the McEwen Road off-ramp when he was struck by an asphalt truck.

Officials said Khorram was based in Concord and assigned to the project as a construction inspector. Additional details about the incident were not immediately available.

"An employee since 2023, Mahdi was a dedicated public servant committed to making our roads safer for all Californians. We extend our deepest sympathies to his family, friends and colleagues mourning this terrible tragedy," Newsom said in a statement.

Newsom said flags at the State Capitol and Capitol Annex Swing Space would be flown at half-staff.

Khorram is survived by his wife and 3-year-old child.