Sao Paulo, Brazil ? Rebellious inmates at a prison in Brazil’s remote Amazon jungle ended a four-day uprising and released more than 200 hostages Wednesday after authorities met their principal demand by returning one of their leaders from another prison.

Armed with makeshift knives, the inmates began their uprising during Sunday’s visiting hours at the Urso Branco State Prison in Rondonia’s state capital, Porto Velho, 1,500 miles northwest of Sao Paulo.

The 190 women and 17 men held hostage were relatives of the inmates.

Rondonia state police spokesman, Lenilson Guedes, said most of the approximately 1,000 inmates at Urso Branco took part in the rebellion. The prison was built to hold 350 inmates.