On Tuesday, the prosecutor's office said clashes at the Litoral prison in Guayaquil claimed the lives of 18 people.
"The number of deaths rises to 31 and the number of injured to 14 as a result of clashes that have taken place since Saturday at the Litoral Penitentiary in Guayaquil," the prosecutor's office said on Twitter.
On Tuesday, the Ecuadorian authorities declared a 60-day state of emergency in the country's penitentiary system and instructed the military to help stop unrest in prisons after riots broke out in some of the country's prisons on Saturday.