ORLAND PARK, Ill. — Authorities said that school buses at a high school here were evacuated last week after a student found a replica grenade in a bus, the Chicago Tribune reports.

Orland Park police responded to the incident Friday afternoon, and with assistance from the Cook County Sheriff’s Bomb Squad, it was determined that the item did not pose a threat. However, the investigation is ongoing. Cmdr. John Keating told the newspaper that officers interviewed students who were on the bus, and as a precaution, bomb sniffing dogs were used to search the school.

After the student found the object on the bus, it was reportedly given to the bus driver, who evacuated the bus and notified officials. Keating told the Chicago Tribune that when students were removed from the buses at the school, they were taken back into the school. Students who were being picked up by their parents were allowed to cross the street to a grocery store parking lot to meet them.

To read the full story, click here.