Envelope sent to US senator said to test positive for ricin

April 17, 2013 03:58

WASHINGTON - An envelope sent to Republican Senator Roger Wicker of Mississippi tested positive for ricin, Senator Dick Durbin told reporters after a group of lawmakers were briefed by the FBI.

Ricin is a lethal poison found naturally in castor beans.

A spokeswoman for Wicker referred inquiries to US Capitol Police. A spokesman for Capitol Police could not immediately be reached for comment.

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