NEW YORK -- An NJ Transit train with no passengers on board derailed at New York Penn Station early Wednesday, officials said.

The derailment occurred on Track 4 around 5:15 a.m., according to 7ABC.com. No injuries were reported. Only the conductor was aboard.

NJ Transit was reporting 20 minute delays on the Northeast Corridor, North Jersey Coast, Montclair-Boonton and Midtown Direct lines as of 6:15 a.m. but by 6:35 trains were running on or close to schedule. Tracks 1 through 6 were blocked, according to NBCNewYork.com.

An Amtrak crew was attempting to clear the train, the report said.

The latest incident comes after a difficult year for NJ Transit commuters with ongoing repairs following an earlier derailment in July.

No one was hurt during a slow speed derailment on July 6.

On April 3, an NJ Transit train derailed, damaging tracks that required a reduction in service for almost a week for repairs. Amtrak officials blamed the condition of a wooden tie, which allowed the rails to spread under the train.

On March 24, an Amtrak Acela train derailed and sideswiped an arriving NJ Transit train.

NEC, NJCL, MOBO MTD service is subject to up to 20 min delays in both directions into/out of PSNY due to an earlier train derailment in NY. — NJ TRANSIT (@NJTRANSIT) August 23, 2017

Jeff Goldman may be reached at jeff_goldman@njadvancemedia.com. Follow him on Twitter @JeffSGoldman. Find NJ.com on Facebook.