A 7-year-old girl brought cocaine to her second-grade classroom and passed it around, police said Tuesday.

Detectives were trying to determine where the girl got the drugs, which she brought into the John M. Patterson School in her backpack Monday, said police Capt. Benjamin Naish. The teacher called authorities after she discovered the drugs among her students.

One child told her mother that she had eaten some of the powder, but was found to be OK when examined at a hospital, authorities said.

The School District of Philadelphia is waiting for the results of the police investigation before deciding how to punish the child, said spokesman Vincent Thompson.

"We're outraged that some parent or guardian of a second-grade student in Philadelphia would allow their child to bring in powdered cocaine to a school," Thompson said.