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,

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.

A suspicious white powder that forced the Immigration and Customs Enforcement field office in New York City to evacuate does not appear to be hazardous, Mayor Eric Adams said Friday. Adams said preliminary testing of the powder discovered at 26 Federal Plaza,