NEWARK - (AP) - New Jersey Transit says its trains between Newark and New York's Penn Station have returned to normal operations.

Spokeswoman Penny Bassett Hackett says the trains returned to the posted schedule around midnight Wednesday after they had been running with 20- to 30-minute delays.

She says the delays were due to a switch problem near the Portal Bridge. It carries trains across the Hackensack River between Kearny and Secaucus.

The delays had affected the Northeast Corridor, North Jersey Coast Line and Midtown Direct Service.