"AN Iraqi freelance journalist working for Germany's ZDF television has been killed in the flashpoint city of Fallujah, the network said today.Mahmud Hamid Abbas, 32, had gone to the city on Sunday to film when he was killed "in unexplained circumstances", it said. The media watchdog Reporters without Borders (RSF) said the journalist was killed as he was leaving his native Fallujah for Baghdad. "When he phoned the ZDF office in Baghdad to say he was coming he mentioned he had just filmed a house destroyed by US warplanes," RSF said, quoting ZDF's Iraq correspondent."