According to the JIT, the Buk that was used originated from the 53rd Anti-Aircraft Missile Brigade of the Russian Federation, and had been transported from Russia on the day of the crash, fired from a field in a rebel-controlled area, and the launcher returned to Russia after it was used to shoot down MH17.
Segundo o JIT, o Buk usado procedía orixinalmente da 53ª brigada de foguetes antiaéreos da Federación Rusa, fora transportado dende Rusia o día do accidente, foi disparado dende un campo nunha zona controlada polos rebeldes e o lanzador regresou a Rusia despois de que fose usado para derrubar o MH17.