8:15 PM PT -- Police found the shooter still on campus and took him alive. According to campus police the incident began with a welfare check on a student. Officers say they found drugs and drug paraphernalia, and took the student, Hollis Daniels, into custody.

While he was at the police station, cops say Daniels pulled a gun and shot and killed an officer. It's unclear if the gun was his or belonged to an officer.

6:54 PM PT -- A campus police officer has been shot and killed. A SWAT team is currently looking for the shooter, who is described as 6 feet tall, 140 lbs with red hair and blue eyes wearing a white T and blue jeans. He reportedly fled in a vehicle.

Texas Tech University is currently on lockdown as an active shooter is reportedly on the loose.

The university's Twitter account tweeted a warning to students and faculty late Monday saying there was a shooting at the TTU Police Department, and that the shooter was at large. They also told people on campus to take shelter.

The reported shooting comes on the heels of the Vegas massacre, where shooter Stephen Paddock gunned down more than 50 people and left hundreds more injured.