A day after an empty local train derailed near the Chhatrapati Shivaji Maharaj Terminus (CSMT), services on the Mumbai's Harbour line were badly affected during the morning peak hours on Thursday due to bunching of trains.

The Central Railway (CR) said it happened due to the imposition of speed restriction at 10 kmph for local trains at the crossover point (track changing point) close to the CSMT station - the spot where two incidents of derailment occurred in three days, reported PTI.