Authorities in central California say a jail inmate who was injured in a gas pipeline explosion at a sheriff's gun range has died.
The Fresno County Sheriff's Office announced the 52-year-old man's death late Monday, saying he suffered severe injuries in the April 17 blast. The office did not release his name or say when he died.
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The explosion sent 11 people to the hospital, including eight jail inmates who were doing cleanup work at the range.
The blast occurred while a county employee was using a front-loader to build a dirt berm to confine gunfire to the range. Pacific Gas & Electric Co. says it appears the employee ruptured its pipeline.
The blast is being investigated by the California Public Utilities Commission.