(Henrieville, UT) — A 15-year-old girl is now in stable condition at a Salt Lake City hospital after being shot by her younger brother in Henrieville.

Investigators with the Garfield County Sheriff’s Office say the two got into an argument and then the 12 or 13-year-old boy shot his sister.

Saint George News reports investigators said yesterday they’re still looking into the Sunday night incident, including exactly what led up to the shooting. The boy is currently at a juvenile detention center.