An Amtrak power problem has left some New Jersey Transit commuters stranded Thursday on the rail line that runs between New York City and New Jersey.

Amtrak spokesman Cliff Cole told CBS News that power was lost in a Hudson River tunnel at around 9 a.m. Thursday. Initially four trains were stranded but two were later removed. The outage caused other Amtrak delays, however, the spokesman said.

Two trains were stuck in the Hudson River rail tunnel and two trains were stranded outside the tunnel on the New Jersey side.

Many passengers were stranded at New York's Penn Station, while others were being rerouted to subway trains.

By early Thursday afternoon the Northeast Corridor and North Jersey Coast Line trains were still facing delays of up to 30 minutes since only a single track into New York City is available.

PATH is honoring NJ Transit tickets and passes during the problem and Main/Bergen and Pascack Valley line passengers are encouraged to stay on trains to Hoboken.