PRINCETON, Ind. –  A freight train derailed, and several train cars caught fire in southwest Indiana, forcing the mandatory evacuation of nearby homes and businesses.

The Gibson County Sheriff’s Office says in a statement the train derailed Sunday evening just west of a trailer park in Princeton.

Officials say that several people reported and explosion.

Rail operator CSX says preliminary reports show a rail car leaked propane. It says the train had two locomotives, 89 loaded railcars and 9 empty railcars.

The derailment’s cause is under investigation.

No injuries have been reported.