Sixty firefighters were needed to extinguish the blaze, which began shortly after 2 p.m. at the Chambers Street station. The fire started in signal wires, which soon ignited wooden track ties. The blaze was fueled by a tar-like substance that is used to seal the ties, fire officials said.
The fire was under control in two hours, but service on the A, C and E lines was rerouted along Sixth Avenue between W. 4th Street and Jay Street.
No one was hurt.
