3 killed in Alabama University Shooting

(CNN) -- Three people were killed and one was wounded Friday after a shooting at the University of Alabama in Huntsville, said Ray Garner, a spokesman for the university.

A female shooter was in custody, he said.

The incident occurred about 4:15 p.m. in Shelby Hall, which police were still searching, said Trent Willis, a spokesman for the mayor. "We do have some witnesses," he said.