A pedestrian attempting to cross a Marietta road was critically injured when he was hit by a car early Thursday, police said.

Gerald Mack of Marietta was walking on Delk Road outside of a crosswalk when he was hit about 5:50 a.m., Officer Jared Rakestraw said.

Investigators believe Wilfredo Ramos of Flowery Branch was driving a red 2001 Ford Focus westbound on Delk Road, approaching Franklin Road, when he hit Mack, Rakestraw said.

Mack was taken to WellStar Kennestone Hospital with life-threatening injuries.

Anyone with information on the crash is asked to contact Officer Rakestraw at 770-794-5357.