NEW DELHI (AP) _ An explosion ripped through two cars of a passenger train in eastern India on Monday, killing four people and injuring at least 50, police said.
The explosion occurred near the Belacoba train station, about 345 miles north of Calcutta, said Inspector General of Police Raj Kanojia.
Roy said four passengers died on the scene, but the toll could climb because some of the 50 injured passengers were seriously hurt.
Police earlier had reported five deaths based on initial information.
The cause of the blast was not immediately known.