Knoxville, TN (WOKI) UPDATE: An eighth-grade Gresham Middle School student is arrested Tuesday afternoon for threats of mass destruction.

Officials with the Knox County Sheriff’s Office confirming that the threat was directed at Karns Middle School which was evacuated upon receipt of the threat Tuesday morning.

In addition to the Knox County Sheriff’s Office Juvenile Detective Unit and school officers, KCSO explosive device detection dogs were deployed and searched the school.

KCSO says the arrest was made just before 2:00 p.m. and that the investigation into the threat remains active.

ORIGINAL STORY: Karns Middle School has been evacuated due to a threat Tuesday morning.

In a release to media just after noon today, officials with the Knox County Sheriff’s Office say KCSO’s Juvenile Detective Unit and school officers are on campus to investigate.

They add that the investigation is in its preliminary stages and information, at this time, is limited.