(CNN) -- Four siblings, all 18 or younger, were killed in rural Louisiana Friday when Amtrak's "City of New Orleans" struck their vehicle at a railway crossing, authorities said.
The victims have been identified as Emelia Alfaro, 18, and her brothers Eduardo, 16; Joel, 13; and Israel, 12, according to the Tangipahoa Parish Sheriff's department. Emelia was the driver of the car and was approximately seven months pregnant, said Chief Deputy Dennis Pevey.
The passenger train had just left New Orleans en route to Chicago, illinois, Amtrak said.
The accident took place Friday afternoon at a crossing hear Highway 51 in Independence, Louisiana. Pevey said a preliminary investigation indicated Alfaro's vehicle crossed the tracks, failing to stop for the train. The crossing is not gated but does have stop signs, he said.
No one on board the train was injured in the accident, Amtrak said.