Police hazmat and emergency services units late Monday scrambled to deal with seven suspicious letters filled with white powder, addressed to banks and City Hall in New York City in what officials believe was a mass mailing tied to Tuesday's May Day demonstrations.
Five letters were sent to Wells Fargo offices, one to J.P. Morgan and another to Mayor Michael Bloomberg at City Hall, police said. The letter addressed to Bloomberg was processed at a city facility at 100 Gold St., about a block away from NYPD headquarters.
Some of the letters contained messages indicating a link to the May Day events, telling the intended recipients that the mail was "a reminder that you are not in control. Just in case you needed some incentive to stop working," according to NYPD spokesman Paul Browne.
Tests of the powder revealed that the substance was harmless, police said.
Browne added that the senders appear to have misjudged the mail service, with the letters arriving a day before May Day.