A white powder discovered at the Federal Courthouse in Center City turned out to be a false alarm this morning.
Shortly after 9:30 a.m., a hazmat team responded to a report of the discovery of a white powder on the building's second floor, according to police and fire officials.
A prisoner in the building allegedly sent a letter to an office on the second floor and claimed the envelope contained anthrax, leading to the evacuation of the floor, according to Executive Fire Chief Richard Davison.
Traffic was blocked off between Sixth and Seventh on Market Street for more than an hour, according to traffic.com.
