Ramalingayapalli (AP), Dec 22: Differences between railways authorities and police over cause of derailment of Hyderabad-Bangalore Express here has forced suspension of track repair and restoration work since last night, official sources said here today.
With the railways clinging to their theory that sabotage might be the cause of the mishap that left 20 persons dead yesterday, the police ruled out such a possibility and blamed it on the "track fault", sources said.

As the controversy raged, railways authorities suspended the work last night, they said, adding that the police again deployed a forensic expert team and used sniffer dogs.
They also inspected the damaged tracks and collected metallic powder of the tracks, sources said.
Bureau Report