Passengers were temporarily forced off the 7 train and rerouted via Queensboro Plaza.
Authorities believe the man jumped in front of the train at Grand Central station Monday afternoon.
A train stalled in the East River tunnel about 7:30 Wednesday night, stranding communters, Amtrak says.
The trains were running with delays in both directions Wednesday morning, according to the MTA.
A woman was struck and killed at the subway station near the Barclays Center Thursday afternoon.
The MTA said to expect systemwide delays of up to 20 minutes on the LIRR during the evening commute.
The train was bypassing the station and travelling 80 mph when it struck them, officials said.
N and Q trains were stopped between Queensboro Plaza and Ditmars Boulevard Tuesday afternoon.
A Monday night derailment west of Forest Hills caused major damage.
There were rush-hour delays on the 4, 5, 6, N and Q trains during rush-hour commute, MTA said.
The person was not hit by a train, but service along the B and C lines was disrupted, officials said.
A train service resumed with delays Tuesday morning after a passenger fell on the subway.
The company is reporting delays of up to an hour both in and out of Manhattan's Penn Station.
A man was struck by an R train at Fourth Avenue and Ninth Street on Friday, FDNY officials said.
The Port Authority said thousands of commuters were redirected to the WTC station.
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