WASHINGTON — U.S. officials say a package containing what authorities said could be ricin was found this morning at a military mail sorting facility at Joint Base Anacostia-Bolling in Washington, D.C.

Senate Majority Leader Harry Reid, D-Nev., told reporters Tuesday there was an incident at the Bolling base that involved the "same substance" as recent letters sent to President Barack Obama and a U.S. senator.

A U.S. official says the package was found at a Defense Intelligence Agency headquarters mail-sorting facility on the base. The official says initial tests indicated possible ricin. The official was not authorized to speak publicly about the incident so requested anonymity.

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The DIA says tests indicated possible biological toxins. DIA says the agency has maintained normal operations.

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