According to the Associated Press, A threatening letter was mailed to President Obama that is similar to two letters containing poisonous ricin sent to Mayor Bloomberg and his anti-gun group, officials confirmed Thursday.
The letter, first reported by NBC 4 New York, is being tested for ricin. It was received Wednesday at an off-site facility, and did not reach the White House, according to the Secret Service.
The text of that mailing was identical to the letters sent to the mayor and his gun group, which threatened: "what's in this letter is nothing compared to what I've got planned for you," police and law enforcement sources said.
One letter was discovered at City Hall's mail sorting facility at 100 Gold St. on Friday, a law enforcement source told NBC 4 New York. It appeared to contain a pink, oily substance when a mail worker came across it and was immediately flagged as suspicious.