Garland police are asking the public for help to locate a missing man who may have been swept away in flash flood waters last weekend.

Gerrad Kelley, 50, was last seen on Saturday just before 4 p.m. near a creek at the intersection of Pleasant Valley Road and Shalimar Drive. He was with his girlfriend Stacy Simpson when a rainstorm overtook the couple.

“It was sprinkling at first. Then it started coming harder. The ground was already saturated, so the culvert filled up a lot quicker,” Simpson said, per NBC 5 DFW.

Simpson left the area to seek shelter nearby, but Kelley stayed behind.

“I was there for five or 10 minutes, and I came back. … The water was up higher than I’ve ever seen it,” Simpson told NBC 5.

After the storm subsided, Simpson found Kelley’s shoes and bicycle near the creek, but there was no sign of Kelley.

Officers searched the area using a Department of Public Safety helicopter, the Garland Fire and Rescue team, and a drone unit but could not find Kelley.

Simpson and friends of the family have searched further downstream along the creek but have been unable to locate the missing man.

“We’ll just keep looking until we find him,” Simpson told NBC 5.

“Kelley is described as a white male, 5 feet 10 inches in height, weighing approximately 140 pounds. He has brown eyes, brown hair with a medium-length grey beard, and was last seen wearing black shorts and a grey “ARMY” t-shirt,” per a missing persons announcement by the Garland Police Department.

“If anyone has information about his whereabouts, they are urged to call the Garland Police Department at 972-485-4840.”