Young girl finds gun under pillow in Detroit, kills self

This photo taken Wednesday morning, May 11, 2016, shows the exterior of home in Detroit where Police say a young girl fatally shot herself after finding a handgun under her grandmother's pillow. (Todd McInturf/Detroit News via AP) (The Associated Press)

Police tape is wrapped around the railing outside a home Wednesday morning, May 11, 2016, in Detroit, where Police say a young girl fatally shot herself after finding a handgun under her grandmother's pillow. (Todd McInturf/Detroit News via AP) (The Associated Press)

Police say a young girl has fatally shot herself in Detroit after finding a handgun under her grandmother's pillow.

Detroit police Sgt. Michael Woody says in an email that police responded around midnight Tuesday to a home on the city's northwest side and the girl was taken by medics to a hospital, where she was pronounced dead.

Police say the girl was 4 years old. Broadcasters, citing family members at the scene, report the girl was 5.

According to the initial investigation, police say the girl found the gun in an upstairs bedroom and shot herself while the grandmother was downstairs. Police say two other young children, ages 1 and 3, also were upstairs at the time. They weren't injured.

The shooting is under investigation.