(AP) — Wichita police say a 7-year-old girl was left at school while her parents allegedly were trying to buy drugs.

The girl was left at a south Wichita elementary school Tuesday while waiting to be picked up.

When the parents didn’t show up, the child’s grandmother asked police to go to the girl’s home to check on the mother.

Lt. Jeff Weible says investigators found indications the parents were out trying to buy drugs.

The girl and her 4-year-old sister were placed in protective custody.