MONTEREY (CBS SF/BCN) – A 44-year-old inmate died in San Joaquin County Jail on Sunday, county sheriff’s officials said.

The male inmate, whose name has not been released, had been in custody since Dec. 5 for two misdemeanor warrants and correctional officers found him unresponsive shortly after 3 p.m. Sunday in a single-occupant cell.

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Life-saving measures failed and the man was pronounced dead at the scene. His cause of death is pending investigation, according to the sheriff’s office.

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No other details about the case were immediately available.

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