PHILADELPHIA (AP) — Authorities say a man and a woman are facing charges after a first-grader took 11 packets of heroin to a Philadelphia school.

School officials say 20 students at Barry Elementary School in the city’s Cobbs Creek section were taken to a hospital after a teacher saw a 6-year-old girl playing with one of the packets.

No injuries were reported, although police say one of the packets appeared to have been bitten and a girl was complaining of stomach pains.

Police and prosecutors said Wednesday that 28-year-old Christopher Troy-Jenkins White and 32-year-old Marie Hunter are charged with endangerment and narcotics possession.

Listed phone numbers for White and Hunter can’t be found. It’s unclear whether they have attorneys.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.