The state disciplined three employees at a youth prison after the suicide of an 18-year-old man who had been isolated in his room for two months, the corrections department said Friday.

Department of Corrections and Rehabilitation spokesman Julio Calderon told The Associated Press he could not disclose what the actions were because it was a personnel matter.

Few details have been released about Joseph Daniel Maldonado's case. He was serving time for stealing a car.

The prison system investigation had blamed poor oversight for Maldonado's death at the N.A. Chaderjian Youth Correctional Facility in Stockton last August.

Employees failed to allow him counseling, visitors or exercise, and missed several signs that he needed mental health treatment, according a report by Inspector General Matthew Cate. After employees discovered Maldonado had covered his windows and was not responding, they took 38 minutes to enter the teen's room.

They found Maldonado hanging from a bed sheet.

The disciplinary action was released after more than seven months of requests for information and a Public Records Act request filed by the AP.

Maldonado's family hopes to learn more about his death and the disciplinary actions through a lawsuit against state, said Ben Wyskida of the Oakland-based prison reform group Books Not Bars.

The discipline "could be anything from a slap on the wrist to a firing," Wyskida said. "It's our belief that the department was really negligent on this thing."

Gov. Arnold Schwarzenegger has acknowledged that California's prison system has reached a crisis state, and he called a special Legislative session to address the issue beginning Aug. 7.

Acting Corrections Secretary James Tilton said the overcrowded facilities could run out of beds by next year and the federal courts have taken over management of inmate health care.