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APS to launch investigation into massive outage

Arizona Public Service Co. says it has launched an investigation to determine what triggered a massive power outage that hit Arizona, Southern California and parts of Mexico.

APS spokesman Damon Gross tells The Associated Press they will look for reasons why whatever work an employee was performing Thursday inside a substation near Yuma became an issue as widespread as it did.

Gross says the worker was doing some preventative maintenance work on a piece of equipment called a capacitor when it triggered the massive power outage.

Crews have now restored power to most areas of California, Arizona and Mexico.

Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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