By Steve Neavling

ticklethewire.com

CBP officers on Sunday arrested a woman accused of sending an envelope containing the poison ricin to the White House.

The woman was arrested with a gun in her possession soon after crossing the Canadian Border in Buffalo, The Associated Press reports.

The suspect’s identity had not been disclosed as of Monday morning. She is expected to be charged Monday.

The letter, which was addressed to President Trump, was intercepted at a mail-screening facility and traced back to Canada, according to the Royal Canadian Mounted Police, which helped the FBI investigate.

Ricin, which is derived from castor beans and has no antidote, can be deadly if inhaled or ingested.