Rescuers free woman wedged for hours between 2 buildings in downtown Portland, Ore.

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Firefighters in downtown Portland, Ore., used an air bag to spread the walls and extricate a woman who somehow got wedged between two buildings.

The woman was freed at about 7:30 a.m. Wednesday — roughly four hours after she got stuck in a space estimated at 8 inches to 10 inches wide.

Firefighters say she fell part of the way down a 20-foot wall and was stuck four feet above ground.

Witness told TV stations she had been seen smoking or walking on the roof of a two-story building.