Jamie Scott Lytle/North County Times
Students at CSU San Marcos walk to class Tuesday. The school has received a record number of applications for this fall.
The campus was ordered locked down after a 911 call sent from a frightened student in Academic Hall just before 4 p.m. Thursday.
The student reportedly spotted a woman falling out of a classroom doorway and a classroom of screaming students and the report of someone with a gun, the paper reported.
San Diego County sheriff's deputies soon joined campus police to investigate and even entered the class with guns drawn on about a dozen students and ordered them to the ground, according to the North County Times.
The campus was then given the all-clear. What's still up in the air is if the drama class instructor will face disciplinary action for the skit.