Outbreaks of violence have become common in the country's penitentiary system, and is often connected to rival gangs.
The macabre scene mimics a tactic used by cartels in Mexico's drug war.
The latest gang massacre brings the death toll in Ecuador's prisons to more than 300 this year.
Assassinations have doubled from January through August 2021 compared to the same period in 2020.
President Guillermo Lasso declared a state of emergency in the prison system after 116 inmates died in one of the worst riots in Latin American history.
Ecuador has become a major transshipment point for cocaine being transported to the U.S. and Europe
An ongoing prison war in Ecuador has left over 100 dead this year.
Researchers are concerned that if not properly protected, the Pristimantis ledzeppelin could be on a stairway to heaven.
Lenin Moreno is due to leave office shortly, and is not running in presidential elections, the second round of voting for which will take place this weekend.
Following the death of a local gang boss, planned riots broke out in the overpopulated prison system.
Some customers are being duped, but others are in on schemes that print out fake negative test results for COVID-19.