No other train services were affected due to the derailment as it is a single line.
A coach of a passenger train derailed near the Vadlamannadu railway station in Andhra Pradesh after hitting a buffalo on Tuesday evening, an official said.
No casualty was reported in the derailment incident.
Gudlavalleru Sub-Inspector P Vijaya Kumar said the Vijayawada-Machilipatnam passenger train had hit a buffalo near the station, leading to the derailment of a coach.
No other train services were affected due to the derailment as it is a single line.