Gunmen killed a police colonel and his driver in eastern Baghdad.
The next day three American soldiers were killed by rocket and mortar attacks in eastern Baghdad.
The police adviser was killed Sunday, and four soldiers were wounded in eastern Baghdad.
They shook eastern Baghdad shortly after nightfall and were clearly aimed at civilian areas, including a crowded market.
American and Iraqi security forces have been conducting sweeps of neighborhoods in eastern Baghdad.
Government hangings are now conducted in a prison complex in eastern Baghdad.
The bridge, which is the only way to get from eastern Baghdad to the shrine without a long detour, was a natural bottleneck.
In a series of drive-by killings, four government employees were killed in eastern Baghdad.
At a recent gathering, representatives from 15 neighborhoods in eastern Baghdad stood one after another to explain why they should be chosen to lead.
To help make his point, he took a reporter to see the ruins of a Babylonian building in eastern Baghdad.