WASHINGON (CBS) -- The FBI has arrested a Mississippi man in connection with suspicious letters sent to President Obama and a U.S. Senator. The letters were intercepted at mail testing facilities and preliminary results show they contain the deadly poison ricin.
Police surrounded the Mississippi home of Paul Kevin Curtis last night before taking the 45-year-old into custody.
The FBI believes he sent letters, possibly containing the poison ricin, to President Obama and U.S. Senator Roger Wicker from Mississippi.
Senate Majority leader Harry Reid told his colleagues this morning, "A suspect has been apprehended and his cowardly anonymous attacks."
Mississippi authorities say another letter containing a white substance was sent to a local judge. Lee County Sheriff Jim Johnson says, "I will tell you that they are similar I will tell you that there are consistencies and I will tell you the FBI is working with us to see if it is linked to theirs."
Family members say Kevin Curtis felt he had been mistreated by the government. The letters sent to Washington said, 'to see a wrong and not expose it, is to become a silent partner to its continuance. I am KC and I approve this message.'
The letters addressed to President Obama and Senator Wicker never made it to Washington - they were intercepted at mail testing facilities nearby in Maryland.
HAZMAT teams were called in to test the buildings and authorities say none of the workers became ill. Preliminary tests show the letters contain ricin, but further testing is being done to confirm. Reid says, "I applaud the postal employees and law enforcement officials who protected and neutralized this threat."
The FBI searched Curtis's home but investigators have not revealed what they found.