A packed commuter train has slammed into a sport utility vehicle on the tracks at a crossing outside New York, killing seven people as the front of the train and the SUV burst into flames.
SEVERAL passengers were injured and hundreds of people had to scramble to get to safety.

The impact was so forceful it caused the electrified third rail to buckle and pierce the train, authorities say.
"You have seven people who started out today to go about their business and aren't going to be making it home tonight," Governor Andrew Cuomo said at the crash site in Valhalla, 32 kilometres north of New York City.
The northbound Metro-North Railroad train left Grand Central Terminal in Manhattan around 5.45pm on Tuesday and struck the Jeep Cherokee about 45 minutes later.

Cuomo said the SUV's driver and six people aboard the train were killed, making this crash the railway's deadliest.
The railway crossing gates had come down on top of the SUV, which was stopped on the tracks, Metropolitan Transportation Authority spokesman Aaron Donovan said. The driver got out to look at the rear of the vehicle, then she got back in and drove forward and was struck, he said.
The train shoved the SUV about 10 train car lengths. Smoke poured out of the scorched front rail car, its windows blackened.

"This is a truly ugly and brutal site," Cuomo said.
Witnesses said they saw the flames shooting from where the crash occurred, in a wooded area near a cemetery.
Ryan Cottrell, assistant director at a nearby rock climbing gym, said he had been looking out a window because of an earlier, unrelated car accident and saw the train hit the car, pushing it along.
"The flames erupted pretty quickly," he said.
Passengers described a bump and said they smelled petrol from the vehicle.
Around 650 passengers likely were aboard the train, including Justin Kaback, commuting home to Danbury, Connecticut.

"I was trapped. You know there was people in front of me and behind me, and I was trapped in the middle of a car and it was getting very hot," he told ABC News.
"All the air was turned off so there was no circulation so it was definitely scary, especially when people are walking by on the outside and they said, 'The train's on fire. There's a fire'."
Passenger Stacey Eisner, who was at the rear of the train, told NBC News that she felt the train "jerk" and then a conductor walked through the train explaining what had happened. She said her train car was evacuated about 10 minutes later using ladders to get people out.

The other rail passengers were moved to the rear of the train so they could get off. About 400 of them were taken to the rock climbing gym for shelter. Buses were sent there to pick them up and take them to their destinations.
The train sat on the tracks at the crossing with thick smoke billowing from it.
Official didn't comment on whether the railway crossing gates were working properly. The National Transportation Safety Board said a team was being sent to investigate.