Originally Posted by roving
why did this terrorist organisation not claim responsibility for placing the bomb rather than making the claim that it had shot it down?
Precisely... This is why the bomb theory is less likely at present. An internal explosion leaves many and fairly obvious traces (both on wreckage and bodies) so if that were the case, we would probably know by now.
Originally Posted by oleostrut
The port HS is pictured in some available photos
No it is not. Beaten to death, that photo was of the 2014 August An-12 crash in Algeria.