Police are searching for three suspects accused of robbing an armored truck guard outside a DeSoto bank on Thursday.

According to the DeSoto Police Department, the guard was servicing an ATM in the parking lot of the PNC Bank at 225 North Hampton Road when two suspects attacked him. Officers said the suspects pepper-sprayed the guard before taking an undisclosed amount of cash.

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The suspects fled north in a white Infiniti Q50 sedan driven by a third accomplice, police said. The robbery occurred about 20 minutes south of downtown Dallas.

Authorities said the guard sustained minor injuries and was treated at the scene.

Detectives are reviewing surveillance footage from nearby businesses as part of the investigation. The department said it is working with federal partners, including the FBI, as the investigation continues, according to WFAA.

Anyone with information about the robbery is asked to contact the DeSoto Police Department at 469-658-3000 or submit tips anonymously to Crime Stoppers.