UPDATE 1:28 p.m. - President David Boren has addressed students and press saying that a faculty member reported what sounded like three gun shots near Gould Hall. No evidence of gunshots have been found, no evidence of a suspect was found, no injuries were reported.
It is believed that construction equipment backfire was the cause of the noise. Activities on OU have resumed. Gould Hall remains on lockdown as authorities perform security checks to make sure the area is secure.