The Associated Press says, of the six deaths, five were passengers on board, and the sixth was the driver of the SUV. The driver became stuck "when the crossing gates came down on top of [her] Jeep Cherokee that was stopped on the tracks."
The AP says at least 15 passengers were injured in the collision. There were at least 750 passengers aboard the train.
Officials worked quickly to evacuate passengers as a fire burned at the front end of the train.
The New York Times quotes an MTA spokesperson who says many of the passengers have been moved to a rock-climbing gym for shelter.
This video includes images from Twitter / @anabolicapple.