WALLA WALLA, Wash. (AP) — Crews continue to fight a wildfire in southeast Washington that destroyed one home and threatens dozens of others.

The Blue Creek fire has scorched more than 9 square miles of grass, shrubs and timber about 10 miles east of Walla Walla, a city of 60,000 people. It was about 10 percent contained as of Friday morning.

Authorities are working to prevent flames from reaching a watershed that provides drinking water for the city of Walla Walla.

Evacuation orders are in effect for two rural areas. The fire started Monday was likely human-caused though it's still under investigation.

The city of Walla Walla has been sampling and testing its ground water wells so they could be used in case the fire does reach the watershed and those wells are needed.

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