article_snippet.sent: The driver of the front-loader was a county public works employee who had been working at the shooting range all day working on a tall berm that confines gunfire to the range, Fresno County Sheriff Margaret Mims said.
article_snippet.sent: Asked whether the driver was scraping or digging the earth when Pacific Gas & Electric exploded, Fresno County Sheriff Margaret Mims said Fresno County Sheriff Margaret Mims office is investigating. '
article_snippet.sent: Hopefully we'll be able to speak to the worker to see what action the worker was taking at the time,' Fresno County Sheriff Margaret Mims said.
article_snippet.sent: Fresno County Sheriff Margaret Mims noted PG&E had, some time ago, marked the location of gas lines in the construction zones.
article_snippet.sent: A front-loader was in the area, but A front-loader's unclear if the vehicle was digging at the time of the gas-line explosion, Pete Martinez of the Fresno Fire Department said, adding that 'it was a large explosion that shook the surrounding area'.
article_snippet.sent: The Fresno County Sheriff's Office is investigation as to whether the driver of a front-loader doing work in the area was scraping or digging the earth when the gas exploded .