VALENCIA COUNTY, N.M. — A collision between a Rail Runner train ... The northbound train did not have any passengers on board, and it was going 75 mph when the crash happened.

The incident occurred in Bucks County at around 6 p.m. involving an Amtrak train traveling from Boston to Richmond, Virginia.

RTD light rail trains derailed a record seven times last year and causes, such as wheel failure, often remain secret. A new law makes investigations public.