School officials at the University of Oklahoma say there is no evidence a shooting took place on campus Wednesday and that an alert about the shooting was a false alarm.

Students and faculty were told to shelter in place after a shooting was reported on campus at about 11:30 a.m. Wednesday. As of noon, the warnings were canceled and the school returned to normal operations after police and school officials could not find any evidence that a shooting took place.

A message posted to Twitter and on the university's Web page alerted everyone that a shooting occurred on campus and that Gould Hall, a building that houses the College of Architecture on the Van Vleet Oval, should be avoided.

The tweet sent by the school appears below.

KFOR-TV, the NBC affiliate in Oklahoma City, reported that SWAT teams were activated and that Gould Hall was cleared after several people reported hearing gunshots. At about 12:15 p.m., with the campus back under normal operation, KFOR reports there is still a heavy police presence at the hall.

According to a report in The Oklahoma Daily, OU President David Boren was seen walking up the stairs to Gould Hall at about 11:55 a.m.

About an hour later, the school tweeted a message from Boren that said, "At this time, there is no evidence that shots were fired."

At about 2:15 p.m., the school tweeted that Gould Hall had been cleared and that students could return to class.

