A major fracture on a railway track in Moradabad in Uttar Pradesh halted train traffic on the important Lucknow-New Delhi rail route on Tuesday, officials said.

The gaping crack, over one foot long, was discovered in time near the Chamraua railway crossing between Moradabad and Rampur.

The last train to pass the route was a train bound for Ajmer, an official said. The track has since been repaired.

Divisional Railway Manager A.K. Singhal said the fracture appeared to be a result of the cold weather but added that a probe had been ordered.