RONKONKOMA - ? The Ronkonkoma branch of the LIRR is back on schedule after an overnight partial derailment.

The derailment of a freight train engine happened just after midnight east of Wyandanch.

Passenger service was disrupted in both directions for hours early this morning.

The east and westbound passengers had to get on buses.

The LIRR says everything is now back to normal. LIRR