Two Frederick City Police officers called to the scene of an assault in progress on Friday in the 1300 block of Dahlia Drive shot and killed an 18-year-old man who they said pointed a handgun at them during a foot chase.
The weapon, recovered from under the victim's body, turned out to be an air-powered handgun which police said resembled a real gun.
The name of the victim had not been released by press time Friday.
The incident occurred around 5:30 p.m.
Officers 1st Class James Martin and Michael Weaver responded to an assault in progress involving a victim and four assailants.
The four assailants ran away, with the officers in pursuit, police said.
Police said one assailant had a handgun that they ordered him to drop. Instead, he turned and pointed the gun at the officers, police said.