CLEAN : Wildfires hit S.African winelands, suburbs

A fire occurred on a train between Sandy Cove and Glencairn, currently under investigation as a crime scene. A local resident notes frequent fires in the area and mentions seeing suspects fleeing, but the terrain makes capture difficult. This fire, however, was caused by the train itself.

What challenges do the police face in catching suspects?

What is unique about the fire caused by the train?