NJ Transit spokesman Dan Stessel says its commuter trains were held at stations because there wasn't enough electricity to move them.
Romero says service was restored around 8:20 a.m. However, Amtrak trains experienced delays of up to 45 minutes after the problem was fixed.
There were delays of up to one hour on NJ Transit's Northeast Corridor, North Jersey Coast Line and Midtown Direct service once the power came back on.
PATH trains, which shuttle passengers between northern New Jersey and New York City, honored NJ Transit tickets at Newark and Hoboken.
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