Police guard suburban schools as precaution

Two suburban schools had extra police on hand on Friday.

JOLIET, Ill. - Two suburban schools had extra police on hand on Friday.

Joliet police say officers were stationed outside of Plainfield South High School as a precaution following an "unsubstantiated threat."

In Round Lake, the high school was placed on a second day of soft lockdowns due incidents in the surrounding community.

Police and school district officials say the incidents were not related to the high school.