Guayaquil, Ecuador: Police gained control of an Ecuador prison on Thursday (Friday in Manila) where rioting has left at least 118 inmates dead, some of them decapitated, as rival drug gangs went to war armed with guns and grenades. Another 86 inmates were wounded, six of them critically, according to Ecuador's prisons authority, in one of the deadliest prison battles in South American history. The riot broke out on Tuesday at a prison complex in the port city of Guayaquil between prisoners believed to have links to Mexican drug gangs — mainly the Sinaloa and Jalisco New Generation cartels. By late Thursday, police commander Gen. Tannya Varela told reporters that the inmates 'no longer have control of the cell blocks,' adding that the prisoners were now back in their cells and 'everything is calm.' The restored order came after a massive security operation involving some 900 officers and members of tactical units engaged in what the police service said was a 'mega-operation' to regain control.