Forest Lake schools were locked down briefly this morning, after a staff member reportedly sighted an unknown person on campus around 8 o'clock.
School district spokesman Ross Bennett says both Century Junior High and Forest Lake High School were locked down, and police responded. He says no apparent threat was discovered.
"At this point, they've given us the all clear and our students are returning to class," Bennett said. "We did have delays, our elementary schools are an hour behind, so that disruption is the only real after effect."
About 7100 students attend school in the district, and about 2300 attend the high school.