A driver opened fire on a uniformed Bexar County detention officer at a McDonald's drive-thru late Sunday night.

It happened on the city’s south side around 11:30 p.m..

According to the sheriff's office, the detention officer was driving home in his personal vehicle on Interstate 35 when a man and woman in a silver Nissan Altima began to follow and taunt him.

The officer exited on Military Drive then drove over to Pleasanton Road as the suspects continued to follow him, sheriff's officials said.

The detention officer pulled into a drive-thru at a nearby McDonald's, but the suspects pulled up beside him and opened fire.

“The male driver rolled down his window and shot at the Bexar County Sheriff’ Office Deputy,” said sheriff’s office spokesperson Roseanne Hughes. “(The shooter) did not hit him, but [the bullet] hit the window of the (deputy’s) vehicle and the front windshield.”

The deputy was injured by shattered glass.

He drove to another location to call police, and EMS treated his injuries.

The sheriff's office is looking into whether the detention officer was targeted.

The suspects are still at large.

Sheriff’s officials do not have a physical description of the suspects.

Anyone with information is asked to call the Bexar County Sheriff’s Office tip line at (210) 335 – TIPS(8477).