Police tell KBOI-TV that a husband and wife went to the school campus.
The woman apparently went inside the school, but the man stayed behind in the vehicle, but was parked improperly. A parking lot attendant later went to the vehicle to ask the driver to move, but saw the man put a gun on the passenger seat. (Photos from the Scene >>>)
The attendant went back to the school and told people about the gun. The word quickly spread and then police were notified. School officials quickly put both schools into lockdown.
The call came in at about 1:43 p.m. Boise and Meridian PD were on scene sweeping the campus for potential risks.
"Take shelter and lock doors and windows," Idaho State University said on its website. "Do not move from sheltered position. Await further instructions."
Police say no laws were broken because the man who brought the gun on campus had a concealed weapons permit.