An 11 year old girl Chicago The boy was in serious condition at a local hospital on Friday after being shot in the neck by his 7-year-old sister, according to reports.
The incident happened around 8:20 pm. in the North Lawndale neighborhood on the west side of the city, FOX 32 in Chicago reported.
Police were calling the accident an accident, but details of how the child had access to the gun were not released.
Whether an adult was at home at the time was also unclear.
The shooting took place in an apartment building where patrol cars were seen shortly after the shooting, FOX 32 reported.
The investigation continues, from Chicago WLS-TV reported.