PHILADELPHIA (CBS) — The Philadelphia Police Department and the FBI are seeking the public’s help in identifying the suspects connected to a bank robbery last month.

At about 12:20 p.m., on March 20th, police say two suspects walked into the Sovereign Bank in the 8000 block of Stenton Avenue. They presented a threatening demand note to the teller, obtained an undisclosed amount of cash, and then fled the area on foot.

Authorities say these suspects are repeat offenders and are responsible for several bank robberies in Philadelphia between December 23, 2011 and April 4, 2012.

The following banks were robbed, according to authorities:

MoreBank in the 400 block of W. Cheltenham Ave. on December 23, 2011 and March 14, 2012

3rd Federal in the 6000 block of Roosevelt Blvd. on January 6, 2012

Sovereign Bank in the 8000 block of Stenton Ave. on March 20, 2012

Wells Fargo in the 700 block of Adams Ave. on April 4, 2012

The suspects are both described as black, having a thin build, 5’10” tall, with black Muslim-like garments covering their heads and bodies.

If you have any information, you are asked to contact police right away.

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