Police investigating after white powder found in mail room at Time Inc. building in New York City

New York City first responders remain on the scene at the Time, Inc office building in Lower Manhattan as authorities try to determine what kind of white powder was found late Tuesday night in the mail room. Police were called to 225 Liberty Street just after nine o’clock. Early reports are that one person was exposed to the white powdery substance, but no health issues have been reported.