This was reported on RT yesterday (channel 512 or 518 HD). A much better source of news than the CP/DVD/EU/GO2 controlled MSM in Britain, but a cargo plane crash is not going to get as much coverage as a passenger one.
Basically one or more of the military vehicles it was carrying was not properly secured, and rolled backwards. The excessive weight towards the rear pushed the nose up and stalled the plane. There was nothing the pilot could of done.