A transformer exploded at Hoover Dam.
Hoover Dam transformer fire quickly put out.
One of the largest hydroelectric plants in the country, it produced thick clouds of black smoke and flames which were quickly extinguished.
The explosion at the dam's base did not cause any injuries.
The 8 million residents of Hoover Dam continue to get electricity from the Hoover Dam.
Investigators are currently investigating the cause of the fire.
Officials were trying to determine how much damage was done to the transformer.
One of the 15 units that controls the voltages to power the customers.
Jacklynn Gould (a regional director of the U.S. Bureau of Reclamation) stated that there is no danger to the power grid.
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