Ahmed Riyadh al-Karbouli worked for Baghdad TV, a satellite channel owned by the Sunni Iraqi Islamic Party.
The media group said al-Karbouli had received numerous death threats over the past four months warning him to leave Baghdad TV.
In other violence on September 18, a suicide bomber killed at least 21 people at a market in the northern city of Tal Afar. Another 17 people were wounded.
U.S. officials recently warned that violence might increase ahead of Ramadan, which starts in 10 days' time.
RFE/RL Iraq Report
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