NEWARK, NJ (CBSNewYork/AP) — It was another morning of delays for NJ TRANSIT riders.

A water main break at a train storage yard in Queens caused up to 30 minute delays on the Northeast Corridor, North Jersey Coast Line and Midtown Direct lines.

By about 10:40 a.m., trains were back on schedule.

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NJ TRANSIT spokeswoman Penny Bassett Hackett said trains were stacking up at New York’s Penn Station because they can’t access the yard.

Bassett Hackett says trains normally either leave Penn Station for the yard or return to New Jersey.

The delays came just one day after fallen power lines caused trains to run up to an hour behind schedule between Trenton and Princeton Junction.

Delays lasted most of the day until full service was restored at around 4 p.m.

Amtrak, which owns the tracks, said it did not know yet what caused the wires to come down.

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