Prince George's County police are working to identify a suspect in an armed robbery of a convenience store, and they are asking the public to help.

It happened around 2 a.m. Aug. 3 at the 7-Eleven at 5521 Livingston Road in Oxon Hill.

Anyone with information that may assist in this investigation is asked to call 301-772-4905. Callers wishing to remain anonymous may call Prince George's County Crime Solvers at 866-411-TIPS.

A cash reward of up to $1,000 is being offered for a tip to leads to the arrest ad indictment of the suspect.