A suspicious substance shut down part of the Riley County office building in Manhattan Monday afternoon.
Manhattan Fire Battalion Chief Rex Warden tells KMAN radio that workers discovered a package with a white, powdery substance around 12:30 pm in the building's mail room, but didn't report it to authorities until 2:30 pm. Those conducting business in the building were held for just over an hour while crews investigated. Other parts of the building were evacuated.
Warden says the material turned out not to be hazardous. He didn't specify what it might be, but says it is being shipped to the Kansas Department of Health and Environment for further analysis.
Riley County Police were also questioning some people, as the package had been tampered with, and planned to file a report.
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