MEXICO CITY: A Mexican judge has sentenced the man convicted of ordering the 2017 murder of prominent journalist Miroslava Breach to 50 years imprisonment, a singular judgment in one of the deadliest countries globally for media.

The sentence of Juan Carlos Moreno, also known as "El Larry," was announced by the state prosecutor's office Saturday. He had been convicted of being the "intellectual author" of Breach's murder, one of the few such media killings to be solved in the country.

Mexico is regularly rated by journalism watchdog Reporters Without Borders as one of the most dangerous countries in the world for journalists.

Breach, who covered the country's drug war, was one of 11 journalists murdered in 2017. More than 100 have killed since 2000, but 90 percent of the murders remain unresolved.

Prosecutors said in a statement that the 50-year sentence set a precedent in cases involving crimes against free expression, adding it was the longest sentence to date for such crimes.

Propuesta Civica, a non-governmental organization that advocates for human rights and free expression, said Moreno's sentence "represents an important precedent in the fight against impunity for crimes against journalists in this, the most violent country for the press."