About 400 people were taken to hospitals after the accident, which happened in eastern India, about 220 kilometers southwest of Kolkata, officials said. The cause was under investigation.
Dattatraya Bhausaheb Shinde, the top administrator in the Balasore district, said at least 50 people were dead. The Press Trust reported a death toll of at least 70. Rescuers were attempting to free 200 people feared trapped in the wreckage, said D.B. Shinde, administrator of the state's Balasore district.
UPDATE: The death toll from the derailment of two passenger trains in India has risen to more than 200.