“Due to a social media threat involving Lawrence County High School, all Lawrence County School District School sites have been placed on lockdown at this time,” a Facebook post from the school district said at 11:40 a.m.

“Law enforcement has been notified of the threat, is investigating, and is currently present at LCHS. The safety of district staff and students is our highest priority. Updates will be provided as additional information becomes available.”

Sheriff Ryan Everett said the incident “is under investigation at this time.”

Updates will be published at www.dailyleader.com as well.