Iraqi troops push deep into Sadr City

Iraqi troops pushed deep into Sadr City Tuesday as the Iraqi government sought to establish control over the densely populated Shia enclave in the Iraqi capital.

By midday, Iraqi forces had driven to a key thoroughfare that bisects Sadr City and taken up positions near hospitals, police stations and the political headquarters of Moktada al-Sadr, the rebel cleric. There was no significant resistance and no American ground forces were involved in the operation.