BURBANK --An armed robbery caused a lockdown at a suburban high school Friday.Two armed men entered St Lawrence High School just before 2 p.m. and robbed the cafeteria manager. They entered the cafeteria through a service entrance, which is normally locked but was opened while a worker took garbage out.
The school wasn't sure how much money was taken.
Police searched the building for the men but found nothing. No one was hurt in the incident.