A letter sent to the office of former New York City Mayor Rudy Giuliani on Friday containing a suspicious white powder turned out to be a "nontoxic substance," a New York Police Department spokesman said.
Giuliani's midtown Manhattan office was among seven sites to receive envelopes with the powder, police said. The others were sent to hotels near MetLife Stadium at the New Jersey Meadowlands in East Rutherford, where the Super Bowl will kick off at 6:30 p.m. Sunday.
Eight employees in the mailroom at Giuliani's Manhattan office were decontaminated as a precaution, the police spokesman told CNN
, and no one has shown any sign of illness.
Preliminary tests show the powder delivered to hotels in Rutherford and East Rutherford, N.J., was cornstarch or baking soda, according to The Record
newspaper in North Jersey.
Giuliani's office did not immediately respond to a query from Newsmax seeking comment.
"The Joint Terrorism Task Force and Hazard Materials units have responded to several locations that have received a suspicious letter and substance," New Jersey State Police said in a statement to CNN. "There are no reported injuries at this time, and the locations are being secured."
A federal law enforcement official, who wasn't authorized to comment publicly and spoke on condition of anonymity, said powder from one envelope tested positive for baking soda. It's not clear where that letter was sent.
Hackensack University Medical Center received a number of people for evaluation because they came in contact with the letters, but a hospital spokeswoman said there were no reported illnesses or injuries.
In New Jersey, the suspicious mailings went to at least five hotels, Carlstadt Police Detective John Cleary said.
The mailings arrived at an Econo Lodge in Carlstadt, a Homestead Suites hotel in East Rutherford and a Renaissance Inn in Rutherford, Cleary said. Investigators intercepted additional envelopes from a mail truck before they reached a Holiday Inn Express and Hampton Inn in Carlstadt, he said.
At the Homewood Suites, General Manager Thomas Martucci said the letter sent to his motel contained yellow powder and a typed letter inside referencing al-Qaida and the Dallas FBI.
"It was nonsense," he said.
Lauren Wallace, a jet company employee from Los Angeles staying at the Homewood Suites, said she saw hazardous-material trucks outside and was shooed back from the lobby to her room around 11:15 a.m. by a hotel employee. She said she was allowed out of her room about 40 minutes later.
The Associated Press and Reuters contributed to this report.
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