A three-year-old boy accidentally shot and killed his nine-year-old sisters on Saturday.
Police in Alabama reported that the girl was shot in the head.
The nine-year-old was flown by a medical helicopter to a local hospital, where she later died on her injuries.
Irondale police chief Ken Atkinson reported that the shooting took place on Saturday afternoon at their grandparents’ house.
He went on to say the boy discovered a loaded pistol on top of a bedroom nightstand and shot his sister in the head with it.
An investigation is now under way.
Detectives are interviewing the children’s grandmother and uncle who were at home during the incident.
The grandfather left the gun on the nightstand not knowing his grandchildren were coming to his house that day.
Atkinson said: ‘The lesson is you have to make sure those weapons are put up, out of sight and out of reach, really of anyone, but especially children.’
He added that the little boy has ‘no idea what is going on right now’ and it’s just a ‘horrible situation’.
