A major Metro-North line was shut down this morning after a power outage halted trains.
Commuters on the New Haven Line are now being advised to expect significant delays with only one train running per hour in each direction.
A Con Edison spokesperson said a high voltage feeder cable failed this morning.
Limited service has resumed with the use of diesel locomotives, according to the MTA. It is not clear when electric power will return.
Problems started at around 5:30 a.m., and service was completely suspended for about an hour and a half, according to news reports.
The New Haven line reportedly carries 44,000 passengers during the morning rush hour.