Police have released video of a man they say brutally robbed a 91-year-old woman in Brooklyn on Wednesday afternoon.

On March 2 at about 1 p.m. the suspect approached the elderly victim from behind as she entered a location at 555 9th St., placed her in a chokehold and took out a handgun, according to authorities.

After he pushed her inside the lobby of the location, he demanded money and as he was taking her money a 50-year-old man came across them, police said.

RELATED: Video released of car in Brooklyn hit-and-run that injured elderly man

The suspect pointed the gun at the man and took his money, according to cops. He then fled the location with about $370.

Police described the suspect as a black man, 40 to 50 years old, 5 feet 10 inches to 6 feet tall and 250 pounds. He was last seen wearing a dark-colored hooded sweater, black jacket, black wool cap, black gloves, light colored pants and dark colored shoes.

Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).

The public can also submit their tips by logging onto the Crime stoppers website or by texting their tips to 274637 (CRIMES) then enter TIP577.