White powder scare in West Virginia office building

The discovery of a white powdery substance in an envelope caused a scare on Thursday at a downtown Charleston, West Virginia, office building.
Members of the Hazmat team of the Charleston Fire Department were called to Travelers Insurance on Virginia Street shortly after 9 a.m. The firemen couldn't find any of the substance after testing the envelope and the counter for anthrax. They found no traces of any hazardous material, WCHS Radio 58 reports.
"The person handling the envelope had gotten something on their hands," Owen Hawk, the assistant fire chief, said, according to WCHS Radio 58. "Basically, she thought there was something in the envelope."
The origin of the letter remains unknown and officials said that other than the scare, nothing harmful was found. The office worker who noticed the powder will be monitored to see if she suffers any ill effects in the upcoming days.
According to the Centers for Disease Control and prevention, anthrax was used deliberately as a weapon through the postal system in 2001. The powder was spread by sending letters that caused 22 cases of anthrax infection in total and five deaths. Humans can also become infected with anthrax by handling products from infected animals or by breathing anthrax spores from animal products that have been infected.