Prisoners made it over the fence of the state prison in Reynosa, Mexico, in the state of Tamaulipas near the U.S. border using ladders early Friday morning. In August, a breakout from a nearby prison in Matamoros allowed 40 prisoners to escape.
Many of the prisoners are involved in drug trafficking or have been arrested for violent crimes related to the war on drugs, which has taken 28,000 lives in Mexico since 2007.
There is widespread suspicion that prison personnel have been involved in the escapes. Prosecutors charged prison officials in Durango this summer with permitting inmates to leave at night.
Prosecutors charged the prison officials with supplying weapons to the prisoners, who would leave at night to do contract killings, then return in the morning.
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