22 of the prisoners killed had been sentenced to prison for state crimes, while the other nine had been jailed for federal offences, according to Mexico's public safety department. The department provided no further information about the incident. According to   , a significant number of the inmates at the prison are serving sentences on drug-related charges. Although unconfirmed by the , it has been reported by Mexican media that the violence occurred between members of the and , two Mexican drug cartels which rival each other. It is understood by VoA that violence from the spreads into prisons frequently. According to  , a substantial number of Mexican jails are over capacity for prisoners and often experience drug cartel-related violence.
22 of the prisoners killed had been sentenced to prison for state crimes, while the other nine had been jailed for federal offences, according to Mexico's public safety department. The department provided no further information about the incident. According to Voice of America VoA , a significant number of the inmates at the prison are serving sentences on drug-related charges. Although unconfirmed by the , it has been reported by Mexican media that the violence occurred between members of the and , two Mexican drug cartels which rival each other. It is understood by VoA that violence from the spreads into prisons frequently. According to BBC News Online , a substantial number of Mexican jails are over capacity for prisoners and often experience drug cartel-related violence.
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Voice of America
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VoA
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BBC News Online