A package containing ricin poison letter that was addressed to US President Donald Trump has been intercepted before it arrived at the White House, authorities told American news sources.
The letter was found at a screening office for White House mail not long ago, the BBC cited the authorities as saying to the outlets on Saturday.
They said a substance discovered inside the envelope was distinguished as ricin, a toxin discovered normally in castor beans.
The Secret Service and the Federal Bureau of Investigation (FBI) are investigating where the package originated from and whether others have been sent through the US postal framework.
As of now, there is no known danger to public security, the FBI told CNN in an announcement on Saturday.
One authority said to the New York Times that specialists think the package was sent from Canada.
The Royal Canadian Mounted Police (RCMP) stated on Saturday that it was cooperating with the FBI to investigate the dubious letter sent to the White House.
Authorities state a woman was arrested by US Customs and Border Protection officials as she attempted to enter the US from Canada at a border crossing in New York state on Sunday.
The woman was having a firearm on her and was taken into custody by US authorities, as per the law enforcement official.
US prosecutors are assumed to bring charges against her. Her name was not released.
Ricin is made by preparing castor beans.
It is a deadly substance that, whenever consumed, breathed in or injected, can cause queasiness, internal bleeding, vomiting, and at last organ failure, the BBC announced.
No identified vaccine exists for ricin. In the event that an individual is exposed to ricin, death can occur in 36 to 72 hours, based upon the dose taken, as per the US Centers for Disease Control and Prevention (CDC).
Ricin can be created very easily and also very cheaply, yet specialists state that it is more efficient on people than as a weapon of mass destruction.
The White House and few other federal buildings have been the victim of ricin packages before.
In 2014, a Mississippi man was convicted to 25 years in jail for sending letters powdered with ricin to previous President Barack Obama and different authorities.
After four years, in 2018, a past Navy veteran was accused of sending toxic letters to the White House and the Pentagon.
