UPDATE 6:20 p.m.
An update from TFD says the suspicious package with white substance was not deemed a threat.
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UPDATE 6:10 p.m.
According to TFD, no one is showing signs of being sick and the substance was in passport applications.
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A package with an unknown white substance was opened at a passport center on the eastside of Tucson, according to the Tucson Fire Department.
TFD confirmed their response to the Western Passport Center at Speedway and Kolb after a package was opened, releasing an unknown substance.
HAZMAT is responding to the scene, TFD said.
More information will be updated as released.