New Boston suspects' images

The FBI has released two fresh images of two possible suspects in the Boston Marathon bombings.

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FBI says suspects are 'armed and extremely dangerous'

FBI Special Agent Richard DesLauriers said the Bureau had identified two suspects in the Boston Marathon bombing investigation.

"The nation is counting on those who have information to come forward and provide it to us," he added.

DesLauriers said investigators regard the suspects as "armed and extremely dangerous," adding that "identifying and locating those responsible is now (our) highest priority."

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