Dallas police are asking for the public's help to identify the armed man who is believed to have robbed as many as seven 7 Eleven stores in Dallas..
Police said the robber may be working with an accomplice, but a physical description for that person was not given out by police or witnesses.
Dallas police released several photos of the man they believe is behind the robberies. He's shown in those photos wearing a black hoodie or a grey sweatshirt that reads "Flyer Than Most."
Police describe him as a black man in his 20's and said he uses either a blue steel semi-automatic handgun or a long gun during the robberies.
Investigators said the man enters the store as a customer, then pulls out a gun and demands money. No one has been injured in any of the robberies.
Police are investigating if this same person hit a 7-Eleven on Pleasant Run Road in Lancaster on Wednesday. At that location, the robber fired a shot into a wall which did not injure anyone.
NBC 5's Julie Fine contributed to this report.