Texas Tech University said its campus was locked down because a shooter was "at large."
A Texas Tech student brought to the university's police station for a welfare check shot and killed an officer Monday night before bolting from the police department, officials said, locking down the campus and urging students and staff to "take shelter."
Police had found "evidence of drugs and drug paraphernalia" in the student's room, the university told the student newspaper the Daily Toreador.
After officers brought the student to the police station, that student pulled out a gun and shot one officer in the head, officials said.
The suspect was described as 6 feet tall and 140 pounds with blue eyes and red hair, wearing blue jeans and a white T-shirt, KCBD reported.
This is a developing story. Check back for updates.