July 17, 1 a.m. SBU's counter-intelligence department receives information that Russian Federation passed a Buk, complete with a team, to the terrorist groups in Ukraine. It was transferred over the border close to the town of Sukhodolsk at 1 a.m.
July 17, 9:00 a.m. Buk was moved to Donetsk, and later to Pervomaisk. The information comes from another tapped conversation released by the SBU where two terrorists, identified as “Khmuryi” (Sergei Nikolayevich Petrovskiy, officer of Main Intelligence Department of the Main Headquarters of the Armed Forces of the Russian Federation) and “Buryat” (an unidentified fighter of Donetsk People's Republic) discuss what to do with the missile launch system. Buryat says he brought one system, and it needs to be hidden. But Khmurui says it will traveling [sic] along with tanks of Vostok battalion, and directs the Buk to Pervomaisk.
July 18, 4:50 a.m. -- Interior Ministry's intelligence unit recorded a crawler tractor carrying a missile system moving towards the border of the Russian Federation. The video clearly shows missiles, but the middle one of three is missing.
“We're analyzing this and other collected information. We think this is the very Buk system which shot at the civilian plane flying from Amsterdam to Kuala Lumpur,” Avakov said. He said that the terrorists were “trying to hide evidence of the terrible crime.”