A Roman Catholic priest in Mexico who killed his son to cover up a sexual relationship with the boy's mother has been jailed for 55 years.
Dagoberto Valle Arriaga had confessed in 2005 to killing his son, Oscar.
Prosecutors have not given any details of the case while local media put the boy's age between about eight and 16.
Mr Valle was afraid church officials would remove him from the priesthood if they learned of the child's existence, the authorities said.
Mr Valle was a priest in the city of Texcoco, on the outskirts of Mexico City.
He was accused of kidnapping his son in September 2005 and bringing him to the central state of Guanajuato before murdering him.
The authorities released no details of how the boy was killed, but it appears that his father dumped his body in the outskirts of a city called Acambaro.