SAN FRANCISCO (AP) — California regulators have begun proceedings to consider fines against Pacific Gas & Electric Co. for its role in a devastating series of 2017 wildfires.

The Public Utilities Commission made the decision on Thursday. In a statement, Commissioner Clifford Rechtschaffen said the utility’s violations during the fire siege “are extensive and disturbing.”

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The PUC also ordered PG&E to create a mobile application so the public can report problems such as downed power poles to prevent future disasters.

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PG&E equipment has been blamed for starting some of California’s largest and deadliest recent fires. The utility filed for bankruptcy in January as it faces potentially billions of dollars in liability.

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PG&E says it will cooperate fully with the PUC investigation and is committed to reducing wildfire risk and helping fire-ravaged communities to recover.