YANKTON, S.D.(WNAX)- The Yankton Middle School was locked down for a time Tuesday morning.
Yankton Police Chief Jason Foote was among the officers that responded.
Foote says they did a search of the school.
Foote says school officials followed their protocol.
Superintendent Wayne Kindle sent out the first notice of the lockdown just after 9AM. A follow up all clear was sent at 10:49AM.