TULSA - Tulsa Union High School's lockdown was lifted Thursday, a little more than an hour after an operator received a call claiming two people armed with a gun and a bomb were inside the building.
Tulsa County Sheriff's Deputies quickly determined the information to be faulty, calling it a hoax.
According to Maj. Shannon Clark with the sheriff's office, the caller "indicated that they had heard shots and heard a large amount of screaming coming from an area within the school."
Clark says school resource officers responded to the suggested incident within two minutes of receiving the information, and conducted a "complete and thorough search of the Union High School campus."
As many as 40 units with the Tulsa Police Department and TCSO responded.
The lockdown was lifted around 2:30 p.m. Thursday. Classes are now back in session and students will be dismissed as usual at 3:25 p.m.
Investigators are now working to trace the call.
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