It is mostly deserted. All who aren't terrorists got large notices that the area was going to get the living snot kicked out of it.
The "brave" terrorists were busy hiding in apartments and taking potshots at our troops. Those who dared show their faces typically got 'em blown clean off.
Did US forces search the people who left to make sure there werent any weapons being taken out of the city for use against our forces at a later, more opportune, time?