Lucknow: Seven coaches of the Kalinga-Utkal Express went off the tracks in Khatauli in Muzaffarnagar district of Uttar Pradesh on Saturday evening, officials said. The train was headed from Puri in Odisha to Haridwar in Uttarakhand. At least 4 persons are feared dead in the accident, while more than 30 have been injured. However, no deaths have been confirmed officially. While reasons behind accident are being looked into, conspiracy angle is being not ruled out, and UP ATS team has been rushed to the spot to probe terror angle. The district administration has begun rescue operations.More details are awaited.