UNITED NEWS INTERNATIONAL (UNI) — A passenger train struck and killed a group of elephants in India’s northeastern state of Assam.

The incident occurred Saturday, Feb. 10 in the Hojai district.

Initial reports said four elephants died.

However, The New York Times said a fifth elephant, which was seriously wounded in the accident, succumbed to its injuries on Monday.

Citing forestry officials, the newspaper said the train was speeding because it was behind schedule.

Train operators also reportedly ignored warnings of the presence of elephants in the area.

According to local media, there is an ongoing debate between forestry officials and railway operators over whether the train was traveling through an elephant corridor.

The accident is the latest in a spate of collisions between elephants and trains.

In December, a train struck and killed five elephants in the state’s Sonitpur district.

Assam is home to India’s largest population of elephants with roughly 5,600.