SPOKANE, Wash. (AP) - The FBI has dropped a wall of secrecy around its investigation into the discovery of a pair of letters containing the deadly poison ricin in Spokane.
The agency says no one has been arrested in the case, even though they raided an apartment in downtown Spokane on Saturday.
FBI spokeswoman Ayn Sandalo Dietrich said Monday that legal documents in the case may also be sealed.
The letters were postmarked last Tuesday in Spokane and addressed to the downtown post office and the adjacent federal building. They were intercepted by the Postal Service and no one was injured.
Investigators in hazardous materials suits spent most of Saturday executing a search warrant at a three-story apartment building in downtown Spokane. Authorities said there was no public health risk.
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