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A woman suspected of sending a poisoned letter to the President of the United States, Donald Trump, was detained while trying to enter the United States. The correspondence was intercepted by the White House postal service last week, but the incident was not disclosed until Saturday.
The arrest took place on the Peace Bridge, which connects Canada with New York state, according to a statement to AFP from Aaron Bowker, an official with the border protection and customs service.
According to US media reports, the suspect was carrying a weapon at the time authorities approached him.
The mail with the toxic substance, sent from an address in Canada, was collected before reaching the distribution center inside the headquarters of the United States government in Washington last week.
FBI sources confirmed the presence in the envelope of ricin, a deadly substance extracted from castor bean that can kill a person with just a small amount.
All correspondence addressed to the White House is screened for toxic or dangerous products, as a security measure. In 2013, a ricin letter was sent to then-President Barack Obama and was intercepted by the Secret Service.
US: agents intercept ricin envelope sent to Trump