New clashes were reported on Tuesday in an Ecuadoran prison where 15 people died in a riot the day before, the state prison administration authority said.
"There has been a new incident" in the Latacunga prison in the center of Ecuador, around 62 miles (100 kilometers) southeast of Quito, the SNAI prison authority told reporters.
The prison authority had to send in tactical units to re-establish control following Monday's riot that left at least 15 inmates dead and 21 injured.
SNAI said the most recent clashes took place in a medium security part of the prison that houses 4,300 inmates and is one of the largest in the country.
The authority said "detonations" had been recorded but that police were "containing" the inmates.
No deaths have been reported.
Administrative personnel were evacuated from the prison, said SNAI.
Violence in Ecuador's prisons, where drug gangs vie for power, is often carried out with knives and sometimes involves beheadings.
The violence has left more than 400 prisoners dead since February 2021.
Following Monday's massacre, worried relatives waited outside the prison on Tuesday hoping for information on their loved ones.