Workers at Trump Tower found an envelope contained an unidentified white powder Thursday, addressed to the building’s owner.
Fire Department of New York hazmat units locked down Donald Trump’s campaign office in the building. Six people were there at the time, three of whom were tested for possible exposure. New York Police Department doesn’t believe the powder is dangerous, a spokesman said.
The city’s health department will study the powder further, the Wall Street Journal reported.
Trump himself was in California campaigning in preparation for that state’s primary election.
Mail at Trump Tower is usually opened in the basement, but this particular envelope was brought to the fifth floor and opened there, officials told the Journal.