By STAN LEHMAN, Associated Press Writer Tue Jan 24, 11:02 PM ET

SAO PAULO, Brazil - Rebellious inmates ended a one-day prison uprising in Brazil’s remote Amazon jungle state of Rondonia on Tuesday that left four dead, a police official said. They released their two hostages - the prison’s warden and security director.

Lenilson Guedes, a police spokesman, said officials agreed to all the inmates’ demands, including sentence reductions and longer visiting hours.

"It’s over," Guedes said by telephone. "The inmates released their hostages unharmed."

The uprising began Monday night at the Agenor Martins de Carvalho prison, some 1,300 miles northwest of Sao Paulo.

Inmates told guards that a prisoner was sick and had to be taken to the infirmary, Guedes said by telephone.

"When three guards entered the cell to escort the prisoner to the infirmary, three inmates opened fire with .38-caliber revolvers," Guedes said.

He said it was unclear how the inmates got the guns.

"One of the guards was shot through the heart and died instantly," Guedes said. Three inmates died in the ensuing shootout with other guards.

The rebellious inmates are serving time for crimes ranging from rape and murder to petty larceny, he said.

The rebellion came a month after inmates at the Urso Branco State Prison, also in Rondonia, took more than 200 visitors hostage in a four-day uprising. Prisoners released the captives after authorities returned one of their leaders, who had been transferred to another prison. No one was hurt.

Urso Branco was also the site of a bloody five-day uprising in April 2004 that left 14 inmates dead, many of them hacked to death and tossed from the prison’s roof. In 2002, police killed 26 inmates in crushing yet another rebellion at Urso Branco.