The robbery happened at 6:15 p.m. on September 10th at the WSFS Bank at 7450 Lancaster Pike.
Police say the suspect walked up to a teller and placed a newspaper on the counter. The man then opened up the newspaper to reveal a silver handgun.
The man the demanded, and received, an undisclosed amount of cash then ran out of the bank.
The teller was not injured.
Anyone with information is asked to contact Delaware State Police Troop 2 at 302-834-2630 or Delaware Crime Stoppers at 1-800-TIP-3333.