NORTH LAS VEGAS, Nev. (AP) — Firefighters worked Monday to contain an intense fire billowing smoke at a regional trash recycling facility in North Las Vegas. No injuries were reported and the cause of the fire was not immediately known. A North Las Vegas Fire official tells KVVU-TV that firefighters arrived about 5 a.m. at the Republic Services Southern Nevada Recycling Center to find hundreds of compressed bales of recycled cardboard burning in an outdoor storage area. The fire spokesman says flames have also damaged the building. Fire crews surrounded the scene and poured steady streams of water into the burning material while a plume of smoke blanketed hillside neighborhoods.