At least 12 people were injured when the engine and a bogie of the Kasganj-Lucknow Rohilkhand Express derailed near Kasganj railway station early Friday.
The train derailed at 5:30 am while passing through a culvert near Kasganj in Kanshi Ram Nagar district.
While the engine fell into flood waters in the area, the bogie of the train was hanging from the culvert, DRM, North Eastern Railway, Bareilly, KB Nanda said.
Twelve people, including the driver of the train, have been injured in the mishap.
The assistant driver of the train is missing after the mishap.