Crews respond to hazmat at Daily Herald in Arlington Heights

ARLINGTON HEIGHTS, Ill. (WLS) -- Firefighters and hazardous materials crews were called to the Daily Herald newspaper in northwest suburban Arlington Heights Wednesday morning after five letters were discovered with a mysterious powder and glitter.

Police and fire crews were called to the building at 155 E. Algonquin about 7 a.m., Arlington Heights Police Sgt. Thomas Henderson said. The building was evacuated for over an hour.

Tests found the powder was not hazardous and employees went back into the building.

The Sun-Times Media Wire contributed to this report.