A 91-year-old woman was assaulted and robbed after a man held her at knifepoint and repeatedly demanded money, Atlanta police said.

Surveillance footage released Friday shows the masked suspect running from a parking lot where he abandoned Nina Poulos’ car after the Dec. 29 attack.

Poulos was in her Friar Tuck Road home that afternoon when she heard a knock on the door. A tall, slender man stood at her door wearing green jeans, a gray sweater, blue vest, orange hat and asked: “Hey, where’s the money you were gonna give me?” A red bandana covered his face.

Poulos told the man “no” and tried closing her door, police said, but the man pulled a knife and forced it back open, knocking her to the ground.

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The masked suspect repeatedly asked for money, but police said when Poulos gave him $4, he wouldn’t leave.

Poulos ran outside to call for help, but the suspect dragged her back inside and again demanded money.

He made off with the $400 Poulos had in an envelope and her bronze Cadillac DTS parked inside her garage.

Police found Poulos’ car in the 1500 block of Peachtree Street, just minutes from her home. The keys were still in the ignition.

Police dogs traced a scent from the car to a home in the 1600 block of West Peachtree Street, but detectives were unable to reach someone inside the home.

The suspect is described as 5-foot-10 and 150 pounds. Anyone with information is asked to call CrimeStoppers. Tipsters can remain anonymous and receive an award of up to $2,000.

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