A two-year-old girl is in a critical condition after being shot by her four-year-old brother at their home in Las Vegas, police say.
Reports said the girl's brother found a loaded 9mm handgun inside the home. It went off while he was holding it, striking his sister in her torso.
According to police, the father was home at the time and the gun appears to have been improperly secured.
An investigation is under way into the shooting. No charges have been filed.
It comes less than a week after a five-year-old boy died after shooting himself in the head.
He had found a handgun inside his father's vehicle outside a Las Vegas pharmacy.
The father in that case has been charged with child endangerment.
