The Committee to Protect Journalists has called on Guatemalan authorities to conduct a thorough and "credible" investigation into the death of a radio station director there.
According to the committee, unidentified assailants shot Álvaro Alfredo Aceituno López, 64, director of Radio Ilusión, June 25 outside the station.
According to press reports, he was hit in the head and died at a local hospital.
"The murder of Álvaro Alfredo Aceituno López is likely to further chill the climate for freedom of the press in Guatemala, where lawlessness and impunity already perpetuate a cycle of violence and intimidation," said Carlos Lauría, CPJ senior program coordinator for the Americas.
He also called on the government to better protect journalists.
CPJ says six journalists have been killed in relation to their work in Guatemala since it started tracking attacks in 1992, with another killed for motives that were unclear.