NEW YORK (CBSNewYork) — Smoke was sent billowing up from multiple Con Edison manholes due to a fire on the Upper West Side late Thursday afternoon.

Con Edison told CBS2 that at least two manholes caught fire in the area of 71st Street and Broadway.

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An electrical fire was to blame, Con Edison said.

Photos and video from the scene showed thick black smoke spewing into the air from two manholes located feet apart in the middle of the southbound side of Broadway.

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Approximately 600 Con Ed customers were left without power and remained in the dark as of 10 p.m.

The manhole fires appeared to be weather-related because of the heat and rain Thursday, Con Edison said.

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Con Ed crews were making repairs late Thursday evening. The FDNY also remained on the scene.