I'm not up on news, do we know what shot it down? Everyone loves missiles, but could it have been guns? Was it flying low? Remember when some helicopters were

I'm not up on news, do we know what shot it down? Everyone loves missiles, but could it have been guns? Was it flying low? Remember when some helicopters were being shot down by RPG's and everyone was like 'whooo, no way, that can't be, they aren't accurate enough".