At least 30 journalists are thought to have either been killed or gone missing in Mexico since President Felipe Calderon took office nearly four years ago.
Journalists covering the Mexico drug war say their lives are in danger as traffickers threaten to violently silence them.
This Thursday, a photographer was killed and another injured in the northern city of Ciudad Juarez.
Local authorities say that while the incidents could have been a case of mistaken identities, it is also possible that the photographers were targeted by the drug cartels.
Al Jazeera’s Mariana Sanchez reports from Mexico city.