Six men suspected of involvement in the murder in August of Ecuador's anti-corruption presidential candidate Fernando Villavicencio were killed in prison on Friday, the prisons agency said, barely a week before a crucial run-off election.
The killings took place in a penitentiary in Guayaquil, the South American country's largest city, the attorney general's office announced earlier on Friday.
Ecuador's government swiftly condemned the killings.
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