A power outage at a Manhattan subway station on Tuesday morning resulted in delays and cancellations on several subway lines, causing disruptions that began late in the morning rush and continued into the early afternoon.
The Metropolitan Transportation Authority, the state agency that runs the transit system, said that an electrical outage hit the signaling system shortly before 8:30 a.m. at the West 4th Street-Washington Square station.
It did not immediately give a cause for the outage, but said that it was investigating whether it was heat-related.
The low power in the system turned the signals red, holding the trains, but Demetrius Crichlow, the New York City Transit president, said that the power on the delayed trains remained on, along with the air-conditioning in the cars.
Mr. Crichlow, who arrived mid-morning on the station’s platform to address the power issue, said that one of the circuit breakers in the area had been reset, bringing back some electricity to the system. He said that the trains would be running again in the early afternoon.
Commuters were forced to find alternative routes on a day when the National Weather Service issued an excessive heat warning.
Several lines cross at the hub, which is in Greenwich Village.
At 2 p.m., severe delays remained on the D line. The A, B, C, E and F trains were also delayed.
Adeel Hassan, a New York-based reporter for The Times, covers breaking news and other topics.
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