Three police dogs were at Freeburg Community High School on Thursday morning conducting a search, according to Freeburg Police Chief Stanley Donald.
"We were just brought in at the school's request to do some searches of the lockers and the cars in the parking lot," Donald said.
Police officers spent about an hour and a half at the school, he said.
Donald declined to say if anything was found.
Freeburg Community School District 77 Superintendent Andrew Lehman said a "few things were found, but nothing I would classify as too alarming or too serious."
He said one item of drug paraphernalia -- a small pipe -- and a small amount of marijuana were found on two different students and were unrelated to each other. Students found to be in violation of the school's Code of Conduct, Lehman said, will be held accountable and disciplined.
District 77 conducts dog searches of the buildings and grounds "regularly," according to Lehman.
"It has been a few years since we've done it," he said. "In the last 15 years, I've been involved in at least 10 of these."
During the canine search, Lehman said Freeburg High operated normally. "There's no disruption to the day," he said.
However, students remained in their classes while the dogs were in the building, according to Lehman.
Students and parents were not notified of the search beforehand.
The canine units -- trained to detect drugs and weapons -- were from Freeburg Police Department, Sparta Police Department and St. Clair County Sheriff's Department.
Contact reporter Jamie Forsythe at 239-2562 or firstname.lastname@example.org.