Washington, April 17 (IANS) Two days after the deadly Boston marathon bombings, US authorities have intercepted a poison-tainted letter to President Barack Obama.
The envelope, addressed to the White House and intercepted at an off-site facility has tested positive for poison ricin, the FBI said Wednesday.
It was immediately quarantined by US Secret Service personnel and a coordinated investigation with the FBI was initiated.
The FBI said White House operations were not affected.
The letter was intercepted Tuesday, the same day that a letter to US Senator Roger Wicker was intercepted at an off-site facility and tested positive for ricin.
Lawmakers on the Capitol Hill confirmed that the Capitol Police intercepted a suspicious letter, which was addressed to Wicker, at an off-site postal screening centre Tuesday morning.
--Indo-Asian News Service
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