Envelopes containing white powder was opened inside a federal building in lower Manhattan, according to a source familiar with the matter, prompting a police response. The five envelopes were discovered in a mailroom inside 26 Federal Plaza,

The white powder found inside five envelopes at a federal building in Lower Manhattan on Thursday is not hazardous, according to sources. The FBI is investigating after the discovery led to the evacuation of 26 Federal Plaza,

A New York City building housing an Immigration and Customs Enforcement facility was evacuated after unknown white powder in multiple envelopes was found at the complex, authorities announced on Thursday.