MEDFORD (AP) — Poor air quality in wildfire-plagued parts of Oregon has kept people indoors ahead of the long U.S. Labor Day weekend, and there's no end in sight as hot, dry, fiery days are forecast through the holiday.

Air quality has been rated unhealthy in cities across southern and central Oregon as wildfires scorch massive chunks of terrain. The largest blaze, burning timber in the southwest corner of the state, is only 5 percent contained.