PITTSFIELD - More details have emerged in an armed robbery that took place Sunday night in a parking lot off Reed Street, and police indicated the event may be drug-related.

According to Pittsfield Police Detective Capt. Patrick F. Barry, a man dressed in black clothing and wearing a mask walked up to a vehicle parked in the lot of Expert Tire - located near the Pizza Hut on South Street - at about 9:45 p.m. Sunday. The man struck the passenger in the face with a handgun and took the 37-year-old's wallet, according to Barry.

The driver of the car, a woman, got out of the car moments before the robbery and then returned to a short time later, said Barry.

Massachusetts State Police were called in and used a K-9 unit in an attempt to track the suspect, but the man remained at large as of Monday night.

The victim, a Pittsfield resident whose name was not released by police, was taken to Berkshire Medical Center for treatment to a facial wound suffered in the attack. No other information was available as to the victim or his condition.

Barry said police were hoping to get a statement from the victim.

Authorities also are appealing for leads in the case. Anyone with information about this crime is asked to call the Pittsfield Police Department's Detective Unit at (413) 448-9705. Pittsfield Police Detective Thomas Harrington is the lead investigator for this case.