My mother reports that she was in the Metropolitan Museum and the lights started to flicker. She saw the lights go out in the Egyptian wing. The class she was attending left the building.

Bronx and part of the Upper East Side and Harlem have been affected. Some traffic lights aren’t working. Subway service is seriously affected.

This from the City Room:

An explosion this afternoon at an electrical substation in the Bronx has knocked out power to 136,700 customers in the Bronx and Manhattan and disrupted subway service on several of the city’s busiest subway lines — the Nos. 4, 5 and 6 and E and V lines on the East Side and the D line in the Bronx — according to officials with the city government and the Metropolitan Transportation Authority.

Yorkville, on the East Side of Manhattan, and parts of the western Bronx were said to be the most heavily affected areas, officials said.