Explosion at Hoover dam after electrical transformer catches on fire | USA TODAY #Shorts

Fire from a Tuesday morning transformer explosion at the Hoover Dam was quickly extinguished, caused no injuries and is not a threat to the power grid.

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Authorities are investigating what caused the fire, the federal Bureau of Reclamation said. In videos posted on social media, a huge plume of black smoke could be seen at the dam.

At approximately 10 a.m. Tuesday morning at "the A5 transformer at Hoover Dam caught fire," according to a statement attributed to Jacklynn L. Gould, the Bureau of Reclamation's regional director for the Lower Colorado Region.

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