At least 15 passengers were injured when the Gorakhpur-Muzaffarpur train collided head-on with an engine being shunted at the Sugauli railway station in Bihar's East Champaran district early Saturday morning.

The accident occurred around 5:30 am when the train, which was about to halt, hit the engine being shunted to the rear of the Raxaul-Sugauli passenger train at the Sugauli railway station, railway sources said.