At least 134 media workers were killed on assignment in 2007, a media group said Monday, with most of the killings in Iraq _ the most dangerous location for journalists since the start of the US-led war there. The Middle East was by far the deadliest region, with 68 killings in the region, followed by Somalia with eight killed, Pakistan with seven, Mexico and Sri Lanka each with six, and the Philippines with five, according to the International Federation of Journalists. "Violence against journalists remained at extremely high levels for the third year in a row," IFJ President Jim Boumelha said. "Our colleagues have been targeted because of their work, or killed covering dangerous stories, often in the rush to cover breaking news." In addition to the 134 killings in 2007, 37 media workers died accidentally on the job, bringing the total number of deaths for the year to 171, the Brussels-based organization said.