EDEN VALLEY  (AP) - A central Minnesota school district was under lockdown Wednesday after a possible threat was posted on Facebook.

Eden Valley-Watkins Superintendent Larry Peterson says the high school principal saw the possible threat posted on the school's page sometime late Tuesday or early Wednesday. The post said "I see dead people" and had a picture of the school attached.

As a precaution, the district's three schools were ordered into lockdown for the school day. Visitor access is being strictly limited, and students, faculty and staff are being kept in their schools until the normal end of their day.

Schools in the district include Eden Valley Elementary, Watkins Elementary and the Eden Valley-Watkins secondary school.

Meeker County Sheriff Jeff Norlin says his office is still investigating and trying to locate the post's

(Copyright 2011 by The Associated Press.  All Rights Reserved.)

More From AM 1240 WJON