The Seemanchal Express derailment occurred on 3 February 2019 near Sahdei Buzurg in Vaishali district of Bihar, India.

[1] Six people were killed and more than 30 were injured.

[2][3] Investigations suggested that the derailment happened because of a fracture in the rail line.

Because of the sudden impact on the broken rail, the locomotive and a few cars decoupled and overturned.

[4] A passenger who survived the crash described hearing a loud bang and falling to the floor of the train.