Mexico's human rights commission says violent incidents have increased and inmates rule in many of Mexico's prisons, a sign of corruption and the lack of resources facing the corrections system.

Commission President Raul Plascencia says incidents such as riots, homicides and prison breaks have increased from 52 for all of 2011 to 119 so far this year.

The commission released a diagnosis of the system Tuesday based on visits and interviews at 101 of Mexico's most populated prisons. The report found 65 of those facilities are run by inmates, not authorities. Such facilities are found predominantly in states that have suffered in recent years from high rates of drug violence.

The commission says the prisons surveyed for the report house 80 percent of Mexico's nearly 250,000 inmates.