Arlington police are searching for a suspect in an armed bank robbery

The surveillance image of the suspect released by police. Arlington Police Department

The Arlington Police Department is investigating an armed robbery that happened Friday afternoon at the Winchester Savings Bank on Medford Street.

Police said a partially masked man entered the bank with a handgun and fled on foot with an unknown amount of money.

Police released an image of the suspect, who they described as, “a black male in his 20s, is approximately 5 foot, 9 inches with a medium build. He was last seen wearing dark pants and a light shirt.’’

He was seen in a residential neighborhood removing both his mask and a dark colored sweatshirt, police said.

Nearby schools sheltered in place during the police search of the area, which involved assistance from the Massachusetts State Police Airwing.

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Anyone with information should call the Arlington Police Department at 781-643-1212.

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