The U.S. military says an American soldier has died in southern Iraq.

In a statement released on Thursday, the military says the soldier was killed during operations on Wednesday in southern Iraq. The statement gave no cause of death. It says the incident is under investigation.

The name of the deceased is being withheld pending notification of next of kin.

The death raises to at least 4,428 the number of U.S. military personnel who have died in Iraq since the war began in March 2003. That’s according to an Associated Press count.

Iraqi officials say attacks on a police patrol in northern Baghdad and a checkpoint north of the city killed two policemen early Thursday. The officials spoke on condition on anonymity because they are not authorized to speak to the media.

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