FORT WAYNE, Ind. (WANE) — Police say they are investigating an armed robbery that occurred at the downtown McDonald’s Thursday night.

Officers were called to 515 W. Jefferson Blvd. around 8 p.m. Police said the initial investigation suggested a black man wearing all black and a black bandanna came into the restaurant with a handgun and demanded cash, then took off with an undisclosed amount.

K-9 units were called in to aid in the search but were unable to find the suspect. Officers said the suspect was last seen headed westbound on West Jefferson Boulevard.