Five suspects have been arrested in connection with the murders last month of journalist Angel Castillo Corona and his son, Angel Castillo Tellez, in Mexico state, prosecutors said.

The suspects belong to a gang that has committed more than 40 automobile robberies, the Mexico state Attorney General's Office said.

Samuel Peña Gomez, 28, Tomas Hernandez Sosa, 35, Ovando Hernandez Sosa, 45, and two minors, ages 15 and 16, allegedly killed the reporter and his son to steal their vehicle, Mexico state Attorney General Alfredo Castillo said.

No shots were fired during the operation to arrest the five men, the state AG said.

One of the teenagers told investigators that he and the other suspects robbed the reporter on July 2 on a highway in Mexico state, which surrounds the Federal District and forms part of the Mexico City metropolitan area.

The gang forced the reporter to stop, made him and his son get out of the vehicle, robbed them and made them get on the ground, the suspect said.

Angel Castillo Tellez resisted, was beaten with a stone and lost consciousness, the suspect said.

The reporter arrived alive at a hospital but died on July 3 from his injuries.

The journalist's son was run over when he tried to escape, the state AG said, citing the suspect's statement.

Since 2000, 71 journalists have been murdered and 13 others have gone missing in Mexico, the National Human Rights Commission, or CNDH, Mexico's equivalent of an ombudsman's office, said in a report released in May to mark World Press Freedom Day.

Mexico has become one of the most dangerous places in the world for journalists in the past few years, and the most dangerous country for members of the media in Latin America, non-governmental organizations say.

Authorities have not solved any of the cases of the journalists listed as missing since 2005 in Mexico, the Inter American Press Association, or IAPA, said in a report released last November.