Hasti Taghi of KPRC for NBC News Channel:
HOUSTON -- Police in Houston, Texas are working to find out where a first grader got marijuana.
Houston Independent School District officials said the drugs were found on the 7-year-old early Thursday morning while he was at school.
The investigation was turned over to the Houston Police and Child Protective Services.
The student was suspended for three days.
A note was sent home to parents to let them know about the incident.