Sambalpur, Feb 13 (PTI) Seven bogies of an express train travelling from Durg in Chhattisgarh to Puri in Orissa tonight derailed at Lakhna, 200km from here, leaving two persons injured, railway sources said. The derailment took place shortly after Durg-Puri intercity express left Lakhna station in Odisha's Nuapara district at around 9pm. Six to seven bogies of the train went off the tracks, injuring two passengers, the sources said. A medical team from Raipur and two relief contingents from Sambalpur and Kantabanjhi were sent to the accident spot. PTI SKN