UPDATE: The white powdery substance that shut down Spokane City Hall earlier this afternoon has been identified as corn starch-based packaging material that came with a product ordered by the city.
Post Street is still closed just north of Spokane Falls Boulevard and Spokane Falls Boulevard is reduced by at least one lane in front of City Hall, but roadways should open soon after police and fire vehicles have been moved.
EARLIER: Posted at 3:32 pm
Spokane City Hall is closed after a white powdery substance was found this afternoon, according to a new release sent out to the media at 3:22 pm.
Police and firefighters have responded and employees who came in contact with the substance have been segregated. Everyone else in the building is being asked to remain on their floors and the public is not being allowed inside at this point.
The 6 pm council meeting will be held as usual. You can watch it on CityCable 5 and on the web at www.spokanecity.org.
We'll update this post as we get more information.