An aerial view of a CSX train that flipped off the tracks in Ellicott City.
Katherine Frey / The Washington Post

The National Transportation Safety Board takes note that Tuesday is the anniversary of a freak accident in Ellicott City, where a CSX coal train derailed and killed two college students who were sitting on a rail overpass in the heart of downtown.

The derailment that killed Elizabeth Nass and Rose Mayr, both 19, is still being investigated by the NTSB. In a blog Tuesday, the director of NTSB’s Office of Railroad, Pipeline and Hazardous Materials Investigations, Robert Hall, noted that last year 843 people were killed or injured near railroad tracks.

He said that through May of this year, there were 356 non-passenger railroad casualties. The Federal Railroad Administration said non-passenger railroad casualties rose 8 percent, from 781 in 2011 to 843 in 2012.