At least four persons were injured in an explosion in a passenger train in Shajapur district in Madhya Pradesh on Tuesday, authorities said.
According to Jitendra Kumar Jayant, a senior railway official at Indore, the explosion took place near Jabri railway station.
The train was enroute to Ujjain from Bhopal.
The injured were taken to a hospital in Kalapipal, the official said.
According to Jayant, the cause of the explosion is yet to be ascertained.