5 killed in Mexico prison riot. Authorities cite dispute between inmates

Five men were killed in a fight between inmates at a prison in Mexico’s Gulf coast state of Tabasco, authorities said Friday.
Four of the five inmates killed in the riot late Thursday were on trial or serving sentences for rape, homicide or other violent crimes, the state police department said.
Police said control of the prison had been regained, and that nobody else had been injured or escaped. About 16 prisoners were detained in relation with the killings.
The police department blamed a “fight between groups” from different cell blocks.
But photos and videos apparently made by inmates and posted on social media suggested the dead men may have been killed in retaliation for extorting money from fellow inmates.