The lady was carrying a gun and arrested by US authorities, in line with the legislation enforcement official.US prosecutors in Washington, DC, are anticipated to convey fees in opposition to her. CNN beforehand reported that legislation enforcement had intercepted a ricin package deal despatched to Trump final week, in line with two legislation enforcement officers, and that investigators had been trying into the chance that it got here from Canada.Two exams had been completed to verify the presence of ricin. All mail for the White Home is sorted and screened at an offsite facility earlier than reaching the White Home.A spokesperson for the Royal Canadian Mounted Police advised CNN Sunday that “the RCMP remains to be not able to concern a press release, or to verify/deny any studies on arrests.” The RCMP confirmed Saturday that it was working with the FBI to research the matter.In a press release supplied to CNN on Saturday, the FBI’s Washington discipline workplace mentioned that “the FBI and our U.S. Secret Service and U.S. Postal Inspection Service companions are investigating a suspicious letter acquired at a U.S. authorities mail facility. At the moment, there isn’t any recognized menace to public security.” Authorities are investigating further related packages mailed to addresses in Texas that may be linked to the identical sender in Canada, CNN beforehand reported, in line with a US legislation enforcement official.”We’re conscious of the regarding studies of packages containing ricin directed towards US federal authorities websites,” Mary-Liz Energy, chief spokeswoman for Canada’s Minister of Public Security Invoice Blair, advised CNN on Saturday.”Canadian legislation enforcement is working carefully with their US counterparts. As that is an lively investigation we can’t remark additional,” she had mentioned.Ricin is a extremely poisonous compound extracted from castor beans that has been utilized in terror plots. It may be utilized in powder, pellet, mist or acid type. If ingested, it causes nausea, vomiting and inside bleeding of the abdomen and intestines, adopted by failure of the liver, spleen and kidneys, and demise by collapse of the circulatory system.As little as 500 micrograms — an quantity the scale of the top of a pin — can kill an grownup. There isn’t a particular check for publicity and no antidote as soon as uncovered.Ricin will be produced simply and cheaply, however consultants say it’s simpler on people than as a weapon of mass destruction.This story has been up to date with further reporting Sunday.CNN’s Paula Newton and Paul LeBlanc contributed to this report.