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 loss of power to the station’s signal system suspended service on the B and C lines in both directions around 8:30 a.m., according to MTA alerts. M train service was also suspended between Delancey Street-Essex Street and Forest Hills-71st Avenue, while F trains were rerouted to the E and G lines and stopped running in Manhattan.

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.