Images of British Airways jet that caught fire in Vegas seems to show engine EXPLODED | Daily Mail Online
Some pictures here that lend themselves to photo-enhancement
I see no signs of shrapnel damage. As some said much earlier in this thread it doesn't look like an uncontained disk rotor. Nor do I see signs of extreme pressure release (some call this an explosion). Instead the pictures of the externals of the engine pod and wing go hand in hand with a persistent ground pool fire.
The closest I have seen to this is and old-fashion gear box fire on the bottom of an engine that remained persistent even to the point where on ground fire services had to wait for it to burn itself out.
The source of the pool fire in this event will be most interesting.