Talik Morris, 20; Johnny Barnes Jr., 20; and Anthony Clemons, 19, were arrested by the Robbery Burglary Unit, police said.
The armed robbery occurred just after 5 p.m. on Brooks Street, police said.
Police patrol and robbery squads and a K-9 unit investigated the incident and found the three suspects.
Police said there have been several similar crimes throughout the city and especially on the East Side and they believe this trio may be responsible.
They were charged with first-degree robbery and conspiracy to commit first-degree robbery.
No other details were made available Friday afternoon.
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