An electrification material train derailed near Koyilandy, about 25 km from here early this morning, delaying services between Kannur and Kozhikode by nearly 90 minutes.
The PRO of Palakkad division of Southern Railway said the train derailed at 1 am between Elathur and Koyilandy soon after it left Koyilandy station.
However, there was no infringement of adjacent line, he said, adding a relief train has been ordered.
Trains are now running on a single track in the section.
The PRO said it would take at least two hours to restore the track.