Published: May 05, 2013 5:57 PM EDT

OAKLAND PARK, Fla. (AP) - A 6-year-old girl is in critical condition after authorities say she was shot by her older brother.
 
According to the Broward Sheriff's Office, the shooting happened Saturday at about 7 p.m. in Oakland Park.
 
Detectives say the siblings were home alone when the 13-year-old boy found a handgun and shot his younger sister.
 
The girl was transported to Broward Health Medical Center in critical but stable condition.
 
The shooting is under investigation but appears to have been accidental.