SPOKANE, Wash. (AP) — Police in eastern Washington say they're no longer investigating racial harassment claims made by Rachel Dolezal, the head of a local NAACP chapter whose integrity was thrown into question when her mother said she's a white woman pretending to be black.

Dolezal has filed police complaints, saying she received hate mail at her organization's post office box.

Spokane police, however, say it's unlikely a letter that didn't have a date stamp or bar code could have been placed in the box without a key.

Police spokeswoman Teresa Fuller said Friday all investigations related to racial harassment complaints by Dolezal were suspended this week.

She says they could resume if new information emerges.

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Information from: The Spokesman-Review, http://www.spokesman.com