Surveillance footage shows three suspects mugging an elderly woman in a building lobby on Sunday — swinging her around and leaving her with a fractured hip.

And worse, two of the three were seen smiling during the attack, including a 13-year-old girl who was arrested on Wednesday.

The video shows the three suspects approach the 76-year-old woman as shse’s trying to enter the Bronx building just after midnight Sunday morning. The woman gets inside and tries to hold the door against them, but they push their way in.

?WANTED-ROBBERY: On 4/3/22 at approx. 12:30 AM, vicinity of Roberts & Hobart Ave @NYPD45PCT Bronx. The suspects forcibly removed a 76 year-old victim’s purse. Any info call us at 800-577-TIPS or anonymously post a tip on our website https://t.co/TRPPY5zHV2 Reward up to $3,500 pic.twitter.com/7VzI3YvCEU

— NYPD Crime Stoppers (@NYPDTips) April 4, 2022

One of the suspects pulled the woman’s hair and another grabbed her purse and swung her around, letting her crash into floor.

The trio left with the purse, which held her debit and insurance cards, her wallet, and $50, police said.

The woman was taken to Jacobi Medical Center for treatment, according to the New York Post.

The arrested teen has been charged with robbery, and police said they’re still looking for the other two.

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[Featured image: The suspects/New York Police Department]