UPDATE 7:54 p.m. Wednesday: Officials have determined that the substance in the manila envelope received at the Iowa State Daily appears to be photo paper residue/particles. Law enforcement have reopened Hamilton Hall and given the all clear.
A package containing a suspicious white powder was received and opened at the Iowa State Daily newsroom about 4:40 Wednesday afternoon. The building has been evacuated; a limited number of people who may have had contact with the package remain on the scene and are speaking with investigators. The Ames Fire Department (hazmat unit) and ISU Police are on the scene at Hamilton Hall on the Iowa State campus. The Des Moines Fire Department and the Federal Bureau of Investigation have been notified. The investigation continues. Watch this space and Twitter (@IowaStateUNews) for updates.