A commuter train derailed in a curve in the New York borough of the Bronx on Sunday, killing four people and leaving dozens hurt, investigators said.

All seven passenger cars and the locomotive jumped the tracks near the Spuyten Duyvil station, about 10 miles north of Manhattan's Grand Central Terminal, the National Transportation Safety Board reported. Three of the dead were thrown out of the train as it "came off the track and was twisting and turning," New York Fire Department Chief Edward Kilduff told reporters.

Surviving passenger Amanda Swanson told CNN the windows of the coaches broke out, and "the gravel came flying up in our faces."

"I really didn't know if I would survive," said Swanson, who put her bag in front of her face to block the rubble. "The train felt like it was on its side and dragging for a long time. ... The whole thing felt like slow motion."

The train was en route to Grand Central from Poughkeepsie, 74 miles up the Hudson River, when it derailed about 7:20 a.m., NTSB member Earl Weener said Sunday. At least 67 people were injured, said Joe Bruno, New York's commissioner of emergency management, and 11 remained in critical condition Sunday evening, Gov. Andrew Cuomo told reporters.