Six people were killed when a Metro-North train packed with commuters from New York City hit a car on the railroad tracks in Westchester at the height of evening rush hour, sparking a fiery crash that's also injured at least 12 people, officials say.

The train out of Grand Central Terminal was going northbound on the Harlem line when it struck a Jeep Cherokee at the Commerce Street crossing in Valhalla at about 6:30 p.m., officials said.