CARROLLTON (CBSDFW.COM) — Authorities say a hoax bomb threat at Hebron High School prompted officials to lockdown the campus on Tuesday morning.

Neighboring Hebron 9th Grade Campus was also locked down as police investigated the threat, which was made in an “outside phone call”.

READ MORE: American Plans To Invest In A Budget Airline Based In Chile

Lewisville ISD released a statement outlining the sequence of events.

“Following the outside phone call this morning, HHS Principal Scot Finch immediately implemented our emergency plan by locking down the campus and notifying the Carrollton Police Department. Police were on scene and secured the building, conducting a sweep – making their way into every room on campus. HHS 9 was placed on precautionary lockdown due to its proximity to HHS.”

The Carrollton Police Department set a perimeter around the school to secure the building. It is unclear as to the exact threat made.

READ MORE: Fight At Gas Pump Escalates After Teenager Pulls Out Gun, Shoots At Off-Duty Cop 

“Please know the safety and security of our students is priority. Our administration, faculty and staff are committed to maintaining a safe school environment that is conducive to learning and teaching,” the district says.

(©2014 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Latest News:

[display-posts category=”news,sports” wrapper=”ul” posts_per_page=”5″]

MORE NEWS: Patient Steals Ambulance From Plano Presbyterian Hospital

Top Trending: