The incident happened around 12:20 p.m. Friday at the Fulton Bank located in the 200 block of East Main Street.
A man entered the bank and passed the teller a note demanding money, police said.
No weapons were displayed. No one was hurt.
The suspect fled the bank with an undisclosed amount of money, police said.
The suspect is described as a black male, 6 feet tall, wearing a black, button up shirt, blue/gray pants, black shoes and a black hat.
Anyone with information can contact Det. James Skinner at 302-366-7110 ext. 3135 or firstname.lastname@example.org.
Anonymous tips can be called in to Crime Stoppers at 1-800-TIP-3333 or provided at www.tipsubmit.com where a reward may be available.