1. Vitaly Nayda, Ukrainian Security Service Counterintelligence Chief, speaking at briefing
2. SOUNDBITE: (English) Vitaly Nayda, Ukrainian Security Service Counterintelligence Chief:
"Rebels can not operate the really sophisticated and high technique missile launch Buk M1. To operate Buk M1 you need to have military education and to be well trained. We know for sure that the team was Russian, they were Russian citizens operating Buk M1 and they came from the territory of Russian Federation together with the missile launcher."
3. Cutaway press centre logo
4. SOUNDBITE: (English) Vitaly Nayda, Ukrainian Security Service Counterintelligence Chief:
"Early in the morning, 2 a.m. and 4 a.m. (local time), 18th of July. 2 a.m. there were two Buk M1s going directly to Russia. And at 4 a.m. there were three heavy trucks, one was empty, one had a Buk M1 and one was with the operational car that helps to operate Buk M1."
5. Wide of Nayda
6. Cutaway of journalists
7. SOUNDBITE: (English) Vitaly Nayda, Ukrainian Security Service Counterintelligence Chief (answering question on who gave the order to move missile launchers over border to Russia):
"This intelligence we can't confirm right the direct authority that gave the order. We think either GRU (Russian Military Intelligence) or FSB (Russian security services) - that's it."
The Ukrainian Security Service Counterintelligence Chief on Saturday claimed that the Buk M1 missile launcher that was allegedly used to shoot down a Malaysia Airlines plane over eastern Ukraine was operated by Russian citizens.
"Rebels can not operate the highly sophisticated and high technique missile launcher Buk M1. To operate Buk M1 you need to have military education and to be well trained," Vitaly Nayda said at a briefing in the Ukrainian Capital, Kiev.
"We know for sure that the team was Russian, they were Russian citizens operating Buk M1 and they came from the territory of the Russian federation together with the missile launcher."
Nayda went on to claim that the Ukrainian Security Service (SBU) has evidence to show that three Buk 1 missile systems had been removed from Ukraine after the shooting down of the plane - supposedly to remove evidence from pro-Russia separatist held areas.
"Early in the morning, 2 a.m. and 4 a.m. (local time), 18th of July. 2 a.m. there were two Buk M1s going directly to Russia. And at 4 a.m. there were three heavy trucks, one was empty, one had a Buk M1 and one was with the operational car that helps to operate Buk M1."
Speaking to journalists after the briefing he continued by saying that the Ukrainian Security Service could not confirm who gave the order to remove the missile systems - but alleged that the information indicated that the order came from Russia.
AP Television has no independent way of proving or disproving the claims.