JANESVILLE, WI (WTAQ) - Janesville police say their investigation found no powder in an envelope, despite an earlier report which resulted in charter school being evacuated.
Police and firefighters were called to a hazardous materials incident at a mail processing facility at Hewlett-Packard Friday.
Five workers were taken to a hospital as a precaution. Two of them complained of irritation after being exposed to a powder.
Janesville authorities say all indications are the envelope posed no health threat.