(Tigard, OR) -- Four juveniles are facing charges for an armed robbery that caused three schools to go into lockouts in Tigard. It happened last Thursday morning. Police say the four armed juveniles robbed another juvenile at a Beaverton apartment complex. They fled the scene and were located in Tigard. Police put Fowler Middle School, Mary Woodward and Charles F. Tigard elementary into lockouts, where the doors are locked, but classes continue, while officers searched the area. The four suspects were found in a home and arrested.