The robbery took place in Williams Park off Nimitz Road.

Dover police are investigating an armed robbery where the thief stole two cell phones.

The incident took place at about 3:15 p.m. Thursday, Aug. 9 in the Williams Park on Nimitz Road, department spokesman Master Cpl. Mark Hoffman said.

The teens told police a man came up to them, pulled a handgun and demanded their phones. The robber ran off toward Nimitz Road after receiving the devices, Hoffman said.

The suspect is a black man with short hair wearing a dark brown T-shirt, dark blue jeans, dirty red shoes and a tattoo on his right forearm that read “FOE.”

Anyone with information on this crime is asked to call Dover police at 736-7130. Tips may be left anonymously.

Tips may also be submitted to law enforcement through Delaware Crime Stoppers at 800-TIP-3333 or online at tipsubmit.com.