Portland firefighters extinguished an RV fire at Southeast 56th Avenue and Bush Street early Thursday morning. There's no word if anyone was inside at the time. The Fire Investigation Unit, made up of Portland police and Portland Fire & Rescue investigators, is investigating the fire. Subscribe: https://www.youtube.com/c/KGWNews8 Watch the latest KGW newscast: https://www.kgw.com/watch Get the KGW app: https://kgw.com/appredirect