According to a CNN report, A train speeding through a forested corridor in India's West Bengal killed three elephants and another is in a critical condition, a wildlife official said Friday.
A baby elephant was among the animals killed in the pre-dawn collision in India's Jalpaiguri district some 620 kilometers (385 miles) north of the state capital Kolkata, said V.K. Sood, chief conservator of forests in West Bengal state.
Another elephant is still in a critical condition after the train plowed into part of a herd crossing the tracks, he said.
Concern over similar incidents had prompted railway authorities to restrict train speeds in the area to 25km an hour. However, the railway department has said a speed of 50km an hour was permissible in the area where the accident occurred.
Sood said an inquiry is now underway to determine the speed of the train that killed the elephants Thursday, he said, adding that investigators were also looking at the levels of visibility on the track at the time.
As many as 36 elephants have been killed by trains in the area since 2004, Sood said.