A subway power outage halted service on several lines Tuesday morning in New York City. The MTA said the subway signal system lost power at around 9 a.m. at the West 4th Street-Washington Square station in Lower Manhattan. The A, B, C, D, E, F and M lines were all impacted. Some trains were not running and others were bypassing Manhattan stops.

A power outage to signal equipment near three Manhattan stations fully or partially suspended multiple subway lines beginning Tuesday morning, causing a cascade of delays across the system, MTA officials said. The agency says it expects service to return to normal by the evening rush.