A 7-year-old boy accidentally shot his 9-year-old sister in the leg Wednesday night, Auburn police said.
It happened around 9:30 p.m. in the 4600 block of Auburn Way South.
Police said a .22 caliber rifle was in the closet of a third sibling who was not home at the time.
The girl was taken to Harborview Medical Center with non life-threatening injuries.
Police are investigating whether any adults should face charges.