TYLER, TX (KLTV) - A teacher is dead and a juvenile is in custody after a stabbing took place at John Tyler High School, that's according to Tyler Police Chief Gary Swindle.
Four East Texas News sources say the victim was a male teacher.
Our reporter on the scene says the school is on lock-down. Earlier he saw a person being loaded into an ambulance.
TISD officials say school will be let out at 10:45am at John Tyler.
We will continue to keep you updated as we receive information.