A privately run Oklahoma prison was locked down Tuesday after about 100 inmates rioted over food complaints, leaving 22 injured, officials said.

Greg Williams of the state Corrections Department said seven of the prisoners at North Fork Correctional Facility in Sayre were taken to a hospital and 15 were treated for minor injuries in the prison infirmary, KFOR-TV, Oklahoma City, reported. No prison workers were injured.

Williams said the inmates had asked to speak with Warden Fred Figueroa about the quality of the food served in the medium-security men's prison...

Beckham County Sheriff Scott Jay said Tuesday's riot at the North Fork Correctional Facility is the worst he has heard about since the private prison opened in 1999.

When he arrived at the scene, Jay said. “We saw mass fighting all over the yard.”

Sixteen inmates were taken to area hospitals to be treated for injuries, according to a statement released about 8 p.m. by the operator of the private prison, Corrections Corp. of America. One had been returned to the prison by evening. The statement also said that 30 inmates were treated at the facility...

Law enforcement agencies responded Tuesday to a disturbance at the North Fork Correctional Facility in Sayre, officials said.  The private prison is run by Nashville-based Corrections Corporation of America and houses offenders from California.

At 11:45 a.m. Tuesday, prison staff responded to multiple inmate fights in various areas of the facility, according to Steve Owen, CCA senior director of public affairs.

By 3:30 p.m., the fighting had ceased, Owen said...

A Sayre Memorial Hospital spokeswoman said prisoners were taken to that hospital in the wake of a riot at North Fork Corrections Facility in Sayre, though she could not confirm what their injuries were or how many prisoners had been hospitalized.

Also, Bill Barrett, spokesman for Great Plains Regional Medical Center in Elk City, said multiple patients were taken to the hospital with injuries. He said some were sent to the emergency room and were being attended to by a comprehensive medical team.

Barrett said the hospital expected to receive more patients in the next few hours. Two helicopters were at the facility to quickly transport victims. It was unknown whether the patients are inmates or prison guards, he said...

Widespread fighting broke out at an Oklahoma prison Tuesday between black and Hispanic California inmates, sending at least 21 inmates to the infirmary or hospitals before police and prison guards were able to restore order, authorities said.

The fighting began shortly before noon at the North Fork Corrections Facility, a privately run medium-security prison in Sayre that houses 2,381 inmates from California. Greg Williams, an official with the Oklahoma Department of Corrections, told The Associated Press that the fighting appeared to have been between black and Hispanic inmates, but he didn't know if it was gang-related...

Law enforcement agencies are responding to a disturbance at the North Fork Correctional Facility in Sayre, officials said.

The private prison is run by Corrections Corporation of America, which was not immediately available for comment.

"I have little information," said Joyce Jackson, Oklahoma Department of Corrections communications director. "Basically, there is supposed to be a disturbance with approximately 80 to 90 Hispanic offenders and they have barricaded themselves in the dining area..."