FORT WORTH (CBSDFW.COM) – Fort Worth robbery detectives are asking for the public’s help in identifying a suspect allegedly responsible for at least six aggravated robberies and attempted aggravated robberies in the area.

Three of the robberies happened in Fort Worth, including a Brookshire’s Food Store and several Kroger grocery stores.

Police described the suspect as 45 to 60 years old, 5 feet, 10 inches tall, weighing 170 pounds. During each crime, he was wearing black glasses, a medical face mask, a baseball hat and a black watch in each robbery.

Aggravated robbery suspect (Fort Worth PD)

On Aug. 4 at 5:33 p.m., the suspect attempted to rob Brookshire’s Food & Pharmacy in Willow Park. Later that evening, he robbed the Kroger at 9114 Camp Bowie West Blvd. in Fort Worth.

The suspect approached the customer service desk, told the employee he had a knife, and demanded she put the money from the register into a plastic grocery bag he brought with him. He then took the money and left the store. Surveillance video showed him getting into the driver’s seat of a mid-2000s silver Kia Spectra that was parked in the fire lane.

On Sept. 6 at 8:30 p.m., the suspect robbed the Kroger at 945 W. Lamar Blvd. in Arlington. His approach was the same the robbery in August. He approached the service desk and demanded an employee put money in a grocery bag he brought with him. He was seen leaving the location in the same silver Kia Spectra that was parked in the fire lane in front of the store.

Four days later, on Sept. 10 at 8:18 p.m., the same suspect returned to the Kroger at 9114 Camp Bowie West Blvd. and robbed it a second time. He did the same thing as in the previous robberies and left in the silver Kia Spectra.

On Sept.15 at 8:16 a.m., the suspect attempted to rob the Kroger at 1001 North Beckley Ave. in DeSoto. He approached the customer service desk but was told it was closed. An employee called for the manager and the suspect immediately left in the same Kia Spectra.

On Sept. 16 at 4:10 p.m., the suspect robbed the Kroger at 3120 S. University Drive in Fort Worth. He told the employees at the customer service desk that he had a gun and a knife and demanded they put the money from the register into a plastic bag. Again, he left the store in the Kia Spectra that he parked in the fire lane.

The suspect may change the plates on the Kia as the vehicle appears to have paper plates in some of the robberies and regular plates in others. The car is always parked in the fire lane for all of the robberies.

Police said anyone with information on the suspect should call 817-392-4377.