From the city of Benghazi in eastern Libya, NPR's Lourdes Garcia-Navarro just told the Newcast desk that:
"There is still an air of celebration. People say they have liberated the city. ... But also, what is being revealed — they say — are the crimes of [Moammar Gadhafi's] regime."
At an Army base there, she says, "hundreds of people have converged on this place and they say that they are shocked by what they found. In one case they found an underground prison where 50 people were being held. And they are now digging, frantically, trying to find mass graves."
Here's a recording of Lourdes' report:
Update at 11:45 a.m. ET. The Associated Press just posted this video, obtained from people in Benghazi, that shows some of the fighting of recent days, celebrations after the city was liberated and other scenes: