A metallic balloon is believed to have sparked a power outage Monday night across Pasadena, officials said.
The Pasadena Water and Power utility said on its Twitter account shortly before 8:45 p.m that electricity was expected to be restored within an hour.
The outage affected neighborhoods across the city. No other details were immediately available.
[Updated 9:03 p.m: Power has been restored, the utility said.]
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