Rifle in the rubble is an AK variant, usually called a Saiga, note the stamped metal receiver and the standard AK magazine. The Saiga is a civilianized AK, they cover up the gas tube above the barrel that most AK’s leave exposed. The rifles pictured on left are SKS’s, they do fire the same 7.62 x 39 round as most AK’s. SKS’s, unless modified, have a fixed magazine.
I read somewhere on an earlier thread that it was indeed an AK variant (Russian Saiga) chambered for the 5.45x39 (AK-74 cartridge).
My SKS was modified to take 30-rnd mags - and looked just like the one in the photo after the cops killed him.......didn’t like the gun and got rid of it......