A suburban New York train derailed on Sunday, killing at least four people and injuring 63, including 11 critically, officials said.
All seven cars of the Metro-North train derailed off a large curved section of track at 7:20 a.m. in New York about 100 yards (meters) north of Metro North's Spuyten Duyvil station in the Bronx borough, said Aaron Donovan, a spokesman for Metro North, a subsidiary of New York State's Metropolitan Transportation Authority (MTA).
A spokesman for the city fire department confirmed the number of dead and said 11 people were in critical condition, six were in serious condition with non-life threatening injuries and another 46 sustained minor injuries.
The train was about half full at the time of the crash, with about 150 passengers, the MTA said.
"On a workday, fully occupied, it would have been a tremendous disaster," New York City Fire Commissioner Salvatore Joseph Cassano told reporters at the scene.
At least one rail car was lying toppled near the edge of a river and police and other rescue workers were searching for survivors along the shoreline.
New York Police Department divers were seen in the water near the scene of the accident, and dozens of firefighters were on the scene helping pull people from the wreckage. None of the passengers were in the water, according to Marjorie Anders of Metro-North.
In July, 10 cars of a CSX freight train carrying trash derailed in the same vicinity, Anders said. Partial service was restored four days later, but full service full service did not return for more than a week.
After touring the scene, New York Governor Andrew Cuomo said his thoughts and prayers were with the dead and injured.
"We think everybody is accounted for, we've gone over the site a number of times," Cuomo said, adding a thorough investigation was underway.
The MTA said details about how the accident would impact the morning commute on Monday were not yet available.
Amtrak said its Empire Line Service is currently being held between New York City and Albany. Amtrak's Northeast Corridor service between Boston and Washington is not affected.
Those injured were being transported to area hospitals, said New York City Fire Department spokesman Michael Parrella.
The train was a diesel with seven cars. The locomotive was on the north end pushing the cars southward.
"This train was not scheduled to stop and was not making a stop at Spuyten Duyvil," the MTA said in a statement.