A bomb planted on a motorcycle in Baghdad has injured two people, while an Iraqi television station says one of its video journalists has been killed on the job.
Officials say at least one policeman was injured in the motorcycle bombing Wednesday in the Iraqi capital.
Meanwhile, a Baghdad television station says journalist Mahmoud Zaal was killed Tuesday as he filmed clashes between insurgents and U.S. troops near the western city of Ramadi. The circumstances surrounding his death are not clear.
The U.S. military also says a Marine was killed Tuesday by small arms fire in al-Karmah, outside Fallujah.
There is no word on the fate of two Germans who were kidnapped Tuesday, or about American journalist Jill Carroll, who was abducted January 7.
Carroll's kidnappers have demanded the release of Iraqi women detainees.
U.S. and Iraqi officials say they plan to soon release some Iraqi detainees, including women - but that the decision has nothing to do with the kidnappers' demands.
Some information for this report was provided by AFP, AP and Reuters.