The outage was having a widespread effect, with the NY subway system also experiencing power outages in its stations, the agency managing the trains said.
"This was a mechanical issue", de Blasio said from the campaign trail.
Con Edison said it was working to restore power to 42,000 customers, mostly on the west side of Manhattan.
Street lights and traffic lights have been put out of action. Some buildings in Rockefeller Plaza have lights on, others were dark.
Saturday's blackout falls on an eerie anniversary, the 1977 outage that knocked out power in most of the city for a full day.
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After completing these steps, the account will participate for a possibility to download Minecraft Earth during the closed beta . It's the most ambitious title in the Minecraft series to date, and fans of the game will be itching to get their hands on it.
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The game was being played one night before what would have been Skaggs' 28th birthday, the Los Angeles Times reported . It was chill-inducing, and happened while the players wore Skaggs' last name and No. 45 on the back of their jerseys.
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Cuomo said in a statement that although no injuries have been reported "the fact that it happened at all is unacceptable", and the Department of Public Service will investigate the blackout. "Hadestown" cast members also staged a street-side performance.
"You could see all the theatre lights across the street, all the marquees went out". Various Broadway theaters cancelled shows.
Thousands of Jennifer Lopez fans at Madison Square Garden were not so fortunate, however, as the venue was in the path of the power outage. New York City went dark during the 2003 blackout of the East Coast and again after Superstorm Sandy struck in 2012. The arena was later evacuated. "Backup generators in one small studio", she tweeted.
But a Reuters alert soon after stated that, "New York utility says it has not determined cause of Manhattan power outage".
Meanwhile, in Midtown west, in a neighborhood known as Hell's Kitchen, a man takes it upon himself to direct traffic. "They did the smartest thing for everybody's safety", she said. And the transit officials warned people to "avoid below-ground subway stations". All you could hear was firetrucks up and down Broadway. We're trying to get people out of elevators. "It was chaos, with fire engines and people packing the streets". "I was wondering what was going on".
"I just don't even know what to say".