(KNZA)-- The Jackson County Jail inmate who died early Tuesday morning while in custody has been identified.

Jackson County Sheriff Tim Morse identity the inmate as 70-year-old Mark Hull, of Topeka.

Morse said Hull was found unresponsive shortly before 3:00 Tuesday morning by jail staff.

Attempts to revive him by Jackson County EMS were unsuccessful.

The Kansas Bureau of Investigation is handling the probe into the death.

Morse said whether a person who is incarcerated in a correctional facility dies of foul play or natural causes in Kansas, the K.B.I. is in charge of investigating the cause of death.