The Dean of Students at Liberty University is looking into a prank on campus.
The school told WDBJ7 late Tuesday night someone caused a small explosion at an empty dorm.
The dorm is gutted and set to be demolished.
The school says a student plugged up a microwave and turned it on sometime last night.
That caused the small explosion.
The school stresses no one was ever in danger and no one was inside the building.