Shortly after noon on Tuesday, June 4, officers were called to the 18700 block of Walkers Choice Road, where there was a report of an injured child.
The girl was taken by Montgomery County Fire and Rescue personnel to an area hospital, where she underwent surgery.
During a subsequent search of the residence, police say that they found a .40 caliber privately manufactured weapon, and a 15-year-old, who does not live at the location, has been charged with possessing ammunition by a prohibited person, a misdemeanor.
The teen was released to his parents.
According to police, the investigation is ongoing. More information is expected to be released.
This is a developing story. Check Daily Voice for updates.
Want breaking news in the DMV as it happens, or want to contribute? Join the DMV All Incidents Facebook group.
Click here to follow Daily Voice Cloverly-Colesville-Fairland and receive free news updates.