Prince George's County police are working to identify a woman killed in Forestville, Maryland, Sunday morning.
Officers were called to the 3300 block of Springdale Avenue about 8:25 a.m. to help a woman who had been stabbed. The victim knocked on a resident's door and collapsed in the yard, police said.
The victim died at the hospital a short time later, police said.
Investigators are working to identify the victim so that her relatives can be notified of her death, but they have failed to identify her through various forensic methods.
Police released a composite sketch of the victim and photos of her clothing.
Her name will be released once her family is located.
Police are also still establishing a suspect and motive.
Anyone with information that can help police is asked to call 301-772-4925.