Authorities in Lincoln County report no injuries resulted from a weekend disturbance at the Lincoln Hills-Copper Lake School.
About 30 students were involved.
Officials say buildings were damaged and several of the students filled socks with some rocks, then made threats.
Fifteen deputies responded from the Sheriff’s Office, Merrill police and the Wisconsin State Patrol.
he situation was brought under control quickly and most units cleared the school in less than an hour.
Three units remained on the scene until officers from the Wisconsin Department of Corrections arrived.
