DELANO, Calif. — On Monday, Kern Valley State Prison officials said they are investigating a homicide that left one inmate dead over the weekend.

According to a news release, around 10:30 a.m. Sunday, staff observed two inmates, identified as Andrew Guzman and Andre Ortega, attacking another inmate on the Facility D middle yard.

Officers ordered the inmates to stop but the men continued their alleged attack, according to the prison's statement.

The staff reportedly performed CPR on the 44-year-old victim, identified as Enrique Hernandez, of the attack before he was taken to a medical unit inside the prison. He was pronounced dead at around 11:15 a.m.

Officials said Guzman and Ortega have been placed in segregated housing and movement on Facility D has been limited to facilitate the investigation.

Two inmate-manufactured weapons were allegedly recovered from the scene.

According to KVSP officials, Hernandez was received by the California Department of Corrections and Rehabilitation (CDCR) on April 14, 1993 from Los Angeles County. He was sentenced to life with the possibility of parole for second-degree murder, discharging a firearm at an inhabited dwelling/vehicle/aircraft, discharging a firearm at an unoccupied vehicle/dwelling.