The deceased were identified as Ashi Kushwaha (3) and Ahua Burman (6).
The kids were playing in the bus parked on the roadside since the last 6 to 7 months under Sohagpur police station area when it suddenly caught fire. The flames also engulfed a nearby truck, District Superintendent of Police Sushant Kumar Saxena said.
The two children were found charred to death in the gutted bus, he added.
Firefighters later put out the blaze.
Police have filed a case and started investigation to ascertain the cause of the fire.
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