A fracture was noticed on the railway track close to Othivakkam railway station near Chengalpattu on Monday morning.
Southern railway sources said the loco pilot of Pothigai Express heard a loud noise on the track and stopped the train at Othivakkam railway station, where he informed the personnel on duty before proceeding to Chengalpattu. Immediately, trains approaching the spot where the fracture had been noticed, were signalled to stop.
Meanwhile, a team of engineers from Chengalpattu attended to the problem. Traffic was affected between 6.20 a.m. and 7.40 a.m.
Trains bound for Chennai Egmore from the southern districts were delayed.