As U.S. jets roared overhead, Mahdi Army militiamen on Sunday battled with Iraqi troops and local police searching for two militia leaders in the southern city of Diwaniyah. At least three people were killed and 24 wounded, official Iraqi sources reported. The southern clashes came just hours after American helicopter gunships attacked targets in Mahdi Army-dominated Shiite east Baghdad, killing four suspected militants, the U.S. military reported, as the radical Shiite militia faced growing pressure to bow to central government authority. Full Story