Chelan County authorities are asking people to avoid the area of Chumstick Highway and Merry Canyon. People in the area have been asked to shelter in place

That's south of the community of Plain near Leavenworth.

Investigators have not released any details other than someone has barricaded himself, but they're asking people to stay inside until an all-clear is issued.

The barricaded person is said to be armed.

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