Four people were killed and dozens more were wounded in New York on Sunday when a train came off the tracks. The early-morning derailment came in a wooded area where the Hudson and Harlem rivers meet. A freight train derailed nearby earlier this year. A witness said some of the passengers were on their way to work.

Andrea Levin: “Terrible. Those poor people. I just keep thinking: 'Those poor people.' We all take this train regularly. I live right up the block. I mean, it’s just so sad. You know, I see the trains on Sunday morning going by; I think, 'These poor people are working.' You know, working people, working on Sunday morning, going to their jobs, some coming home from the holiday. And you get on a train, and look what happens. Just awful.”

Of the 63 wounded, at least 11 were in critical condition. A spokesperson for the National Transportation Safety Board said the crash will be investigated.

Earl Weener: “Throughout the next few days, our investigators will work on scene to thoroughly document the accident scene, gathering the factual information. Our mission is to understand not just what happened, but why it happened, with the intent of preventing it from happening again.”

Thousands of commuters on the Metro North’s Hudson Line are expected to face delays over the next week as repair crews and investigators work on the crash site.