Authorities arrest woman suspected of sending Trump letter containing poison

U.S. officials have reportedly arrested a woman suspected of sending a letter containing the poisonous substance ricin to the White House, addressed to President Trump, according to a U.S. law enforcement official.

The official told CNN that the unnamed woman, who was carrying a firearm at the time of her arrest, was detained by authorities at the U.S.-Canada border while attempting to enter the U.S.

FBI officials did not immediately return a request for comment from The Hill. The agency said a day earlier that it did not believe a threat to public safety was ongoing. Secret Service officials also did not immediately confirm the woman’s arrest.

“The FBI and our U.S. Secret Service and U.S. Postal Inspection Service partners are investigating a suspicious letter received at a U.S. government mail facility. At this time, there is no known threat to public safety,” said the FBI.

Canadian officials added Saturday that they were assisting with the U.S.’s investigation, though no other information about a suspect was available.

“We are aware of the concerning reports of packages containing ricin directed toward U.S. federal government sites,” a spokeswoman for Canada’s minister of public safety, Bill Blair, told CNN. “Canadian law enforcement is working closely with their US counterparts. As this is an active investigation we cannot comment further.”