An employee of a large university in the U.S. state of Ohio has shot and killed a co-worker and wounded another before taking his own life.
Officials say the employee, Nathaniel Brown, entered a maintenance building Tuesday at Ohio State University and opened fire, killing a building services manager and wounding an operations shift leader.
Police say Brown then shot and killed himself on the scene.
No students were hurt and classes went on as scheduled.
Police have not determined a motive for the shooting. But media reports say Brown, a 51-year-old university custodian, may have been disgruntled about a poor work evaluation.
Ohio State University President E. Gordon Gee said in a statement that everyone at the school was shocked and saddened by the shooting. He said the safety of students and staff remains a top priority for the university.
Some information for this report was provided by AP.