Could a Ford Raptor burst into flames after a head-on collision naturally?

Or would someone have had to want it to burst into flames and done something to it? The truck was on fire after the impact, shortly therafter the flames "exploded".

This truck in the picture…: http://starlocalmedia.com/james-bell-of-frisco-killed-in-grayson-county-accident/image_d6313f4c-ffd6-11e4-85b3-7fb1fe527a47.html

Broken gas line doesn't care