Delays and cancellations continued Tuesday on the Long Island Rail Road after a train derailment Monday night.
More than 30 of the 144 LIRR trains used for the morning rush hour were either cancelled or diverted.
Some passengers had to get off at the Jamaica Station or Hunters Point in Queens and take the subway into Manhattan.
The derailment happened Monday just after 6 p.m. when a Hempstead-bound train ran off the tracks inside an East River tunnel.
Officials say the derailment took out one of the four tunnels used for the commute and that it could take some time to clean up.
Crews say they will need to fix about 500 feet of track and about eight switches before access to Penn Station can be fully restored.
"I've never seen this before, like this, it’s been crazy," said one LIRR rider.
"Usually I leave much later but because of all the commotion going on I left much earlier this morning," said another LIRR rider.
Some trains are also stopping at the Atlantic Avenue terminal.
Morning rush passengers were offered free transfers to the 2, 3, 7 and E trains.
The LIRR canceled 21 evening rush-hour trains Tuesday on the Babylon, Far Rockaway, Hempstead, Long Beach, Port Jefferson, Port Washington and Ronkonkoma branches.
LIRR fares were cross-honored at Penn Station so riders can take the 2 or 3 subway lines to Atlantic Terminal or the E subway to Jamaica.
About 500 feet of track and eight switches were damaged when a train bound for Hempstead went off the tracks.
The LIRR said that if repairs were completed, Wednesday's rush hour should be nearly back to normal.
For more information, visit mta.info/lirr.