The Portland Fire Bureau called three alarms to fight a stubborn fire in the historic Osborne Hotel building at Southeast Grand Avenue and Ash Street.

The building dates back to the late 1800's and that style of construction can allow fire to travel inside of walls and ceilings.

There are businesses and apartments in the buidling.

No one was hurt in the fire.  Investigators are trying to determine how is started.

Photo: KATU-TV