The two other robberies happened on March 6th.
That same Citizens Bank branch, along with the PNC Bank at 16th and Market were both hit.
The suspect is described as a white male in his 40s, around 6 foot tall, medium build, wearing a red baseball cap and blue jacket.
Officials say the male fled westbound on Market St. with a brown envelope containing an unknown amount of U.S. currency.
If you have any information, you are asked to call police.
You can get the latest crime statistics from the Philadelphia Police by CLICKING HERE for the force's crime data mapping site.
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