Reuters:

Dozens of insurgents attacked Abu Ghraib prison outside Baghdad on Saturday, detonating two suicide car bombs and firing rocket-propelled grenades at U.S. forces before the assault was repelled, the U.S. military said.

At least 20 U.S. soldiers were wounded in the fighting, which lasted around an hour, a U.S. officer said. At least 12 detainees were also wounded, some severely. It was not known how many insurgents were wounded or killed.