HACKENSACK, N.J. -- Police need the public’s help in identifying a woman who violently attacked a 54-year-old woman inside a city store this week.

On Wednesday, July 29 at 3:19 p.m. inside the Staples on Hackensack Avenue, footage captured on a surveillance camera shows the suspect -- a black woman whose height is between 5’5” to 5’8” and weighs about 160 pounds with her face covering lowered around her mouth -- approach the older woman, who was standing at the fax machine while waving her finger at her. The victim is then shown picking up her walking cane and pointing it at the woman's chest as they briefly circle each other -- the cane standing horizontally between them. When the woman pulls her cane back, the assailant is then seen grabbing the woman’s right arm and then throwing her frail body to the ground a few feet from where they were standing. The suspect is then shown tossing her hair back upon accidentally knocking over one of the store’s transparent partitions.

According to police, the victim had undergone liver transplant surgery this past spring and had asked the suspect to wear a face mask when she approached her. She then became angry and yelled at the older woman before she violently threw her to the ground and left the store.

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After the attack, surveillance video shows the victim lying in the fetal position on the floor with her hand in the air. While still on the ground, she’s seen noticing her assailant return to the store, upon which time she stretches out her right leg to kick the suspect’s right foot. Apparently unfazed, the assailant ignores the woman and keeps walking.

The victim told police she was transported to Hackensack University Medical Center via ambulance where she was diagnosed with a fractured left tibia.

Anyone with information is asked to call the Hackensack Police Department at 201-646-7777. Those who witness a crime are asked to reach out to Crime Stoppers of Bergenfield, Englewood, Teaneck, Hackensack and Bogota. Cash rewards up to $1,000 are offered. Tips can be made anonymously by visiting bergencrimestoppers.org or by calling 844-466-6789, 24/7.