The Patna-Kota Express train derailed near the Dariyaband area here yesterday but no one was injured, police said today. A probe has, however, been ordered in the matter, officials said.\u00a0 According to preliminary details, the engine of the train derailed because of a Sheesham tree that had fallen on the tracks, they said.\u00a0 The tree might have been uprooted by strong winds, police said.\u00a0 The 13237 Patna-Kota Express was moving towards Lucknow from Patna via Faizabad. The driver of the train applied emergency brakes when he saw the tree on the track due to which some passengers fell off their seats and there was panic, they said. No one was injured in the incident, they added. Relief trains from Barabanki and Lucknow were sent to the spot and traffic was restored on the route, officials said.