Campus police at a central Missouri university say they're searching for a gunman seen entering and leaving a building that houses classrooms and academic offices.
Missouri University of Science and Technology police spokesman Andrew Careaga told The Associated Press that a man carrying a gun was seen entering McNutt Hall on the Rolla campus Thursday morning and later seen leaving the building.
He says there have been no reports of shootings and that police are trying to locate the gunman.
The roughly 6000-student technological research and engineering campus was briefly locked down in 2007 after a student who claimed to have a bomb and threatened "terrorist-type" actions. A graduate student from India known to be despondent over his grades was later charged with several felonies.
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