An inmate held at Lansing Correctional Facility died Saturday, the Kansas Department of Corrections said.

Officials identified the man as Eric Avila, 51, who was serving a prison sentence of more than 20 years for convictions on kidnapping and second-degree murder charges, according to a news release from prison officials.

Avila was sentenced in January 2013 in Sedgwick County, according to state records.

Avila was found unresponsive in his cell and was pronounced dead by medical responders after attempts at life-saving measures were unsuccesssful, KDOC said.

Avila’s cause of death is pending the results of an autopsy. KDOC and the Kansas Bureau of Investigation are investigating the death.