AP Virginia Tech officials say a police officer and another person have been shot and killed on the school's campus.

The suspect remains on the loose.

A news release from the school says the police officer had pulled someone over in what was a routine traffic stop Thursday.

The officer was shot and killed during the traffic stop. Witnesses told police the shooter ran toward a parking lot on campus. A second person was found dead in that parking lot. Virginia State Police will be taking over the investigation, according to the news release.