The men, who are said to be very dangerous criminals, had dug a tunnel from inside the prison about 8 meters outside the walls. They likely would have at least gotten out of the hole had it not been for the stray that began barking at the men.
The barking alerted authorities who quickly nabbed the escapees.
One of the men captured, Hilario Villalba, who serving a 30-year sentence for murdering two people, says he will never stop trying to escape.
The prison the men attempted to escape from is in Tacumbu, one of the barrios of capital city Asuncion.