Guards used high-pressure water hoses Tuesday to break down barricades put up by prisoners demanding better treatment for homosexual inmates at the Oregon State Correctional Institution.

The 19 prisoners were placed in segregation units after the eight-hour uprising ended Tuesday morning, prison spokesman Roby Eldridge said. One prisoner suffered minor bruises, he said.A specially trained group of eight prison guards was assisted by about 40 other guards in quieting the disturbance, Eldridge said. Except for the water, no force was used, he said.