Crews are continuing to clean up tons of coal after a train went off the tracks in Bloomington Sunday.
The Indiana Rail Road Company train was headed to Indianapolis from Sullivan County when 35 of its 100 train cars veered off the tracks near the intersection of Garrison Chapel Road.
The road will stay closed for at least the next 36 hours.
The Monroe County Sheriff's initial investigation revealed heat played a role but, a representative with the train company disagreed.
"It would be purely speculation at this point. We have a lot of recovery work to do and a lot of investigation before we can get to the bottom of what caused it,” said Chris Rund of Indiana Rail Road Company.
The damage is estimated at $2.5 million.