Alaska Airlines flight makes emergency landing at PDX due to fume smell

An Alaska Airlines flight from Portland to Phoenix returned to Portland International Airport after passengers in the rear of the plane reported smelling fumes or an odor. The crew declared an emergency, and the aircraft landed safely with no reported injuries. Firefighters inspected the plane but found no immediate sources of danger. The incident did not cause delays for other flights, and the airplane is being inspected by the airline's maintenance team.