AP Photo/Noah Berger In the wee hours of Saturday morning, vandals and arsonists targeted an administrative building for Portland Public Schools (PPS), setting vehicles on fire, smashing windows, and spray-painting the walls. The Portland Police Bureau (PPB) is investigating the attack. The Oregonian published photos of the vandalism and The Post Millennial Editor-at-Large Andy Ngo identified an antifa symbol. Firefighters responded to a fire alarm at the PPS administration building at 3:15 a.m. Saturday, the police department reported. When they arrived, a large box truck and two cargo vans had gone up in flames. The firefighters put out the blaze without sustaining any injuries.