The shooting happened around 5 p.m. Monday on the 7000 block of Langdon Street.
According to investigators, the 19-year-old woman was shot by her boyfriend during the dispute. She was taken to a nearby hospital, where she was pronounced dead.
Sources tell Action News the boyfriend claims the woman came at him with a knife and screwdriver, and that's when he shot her.
Police have not released additional details.
The boyfriend was taken into custody as part of the investigation.
Anyone with information is asked to call police at 215686TIPS.