Glenoaks Elementary School, located at 2015 E. Glenoaks Blvd. in Glendale, is on lock down after a robbery occurred in the 300 block of Mt. Carmel in Glendale around 11:50 a.m. Police are patrolling the area, searching for suspects described as two male blacks, both armed, and have asked the school to be locked down until the area has been deemed safe and clear.