CULVER CITY (CBSLA.com) — Power was restored to more than 1,000 Southern California Edison customers Tuesday following an underground vault explosion in Culver City.

According to SoCal Edison, the explosion occurred around 5:44 a.m. near Pearson Street and Jefferson Boulevard.

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Authorities said traffic lights were out on Jefferson Boulevard and Overland Avenue.

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According to SoCal Edison’s webiste, 1,184 customers were affected by the incident.

Power was restored in the area by 6:30 a.m., officials said.

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The cause of the explosion remains under investigation.