An envelope addressed to the White House was arrested as part of the investigation, which was intercepted on Saturday and considered “suspicious”, the FBI said in a statement on Sunday.
The Associated Press reported, citing three law enforcement officers, that a woman had been arrested at the New York-Canada border. She is suspected of sending an envelope with poisonous castor oil.
The woman was detained by U.S. customs and border guards at the Mist border checkpoint on the bridge near Buffalo and is expected to face federal charges, officials said. Her name was not released immediately.
PACKAGES SENT TO THE PENTAGON, INTENDED TO CONTAIN RICIN, A “SUSPICIOUS ENVELOPE”
The detainee is believed to be the person who sent the letter, according to the FBI field office in Washington.
Click here to get the FOX NEWS app
According to the Mayo Clinic, castor oil is poisonous and can be obtained from waste obtained from the processing of castor beans. There is no vaccine or antidote for the poison.
A Navy veteran was arrested in 2018 and admitted to sending envelopes to Trump and members of his administration containing the substance from which castor oil is derived.
Sam Dorman of Fox News and the Associated Press contributed to this report