The BUK missile launcher that shot down MH17 is being smuggled back to Russia

A driver followed this military truck (left and inset) on a main road on Saturday night for two kilometres in a 'border area' of Russia before uploading the footage, filmed with a dashboard camera, on the internet. The cargo had no escort and Ukrainian sources have seized on it, captioning the footage: 'A Russian blogger filmed the BUK M1 in Russia, the one that shot the Boeing.' Reports from Ukraine suggested the BUK had been smuggled in the dead of night into Russia soon after the plane was blasted out of the sky on Thursday last week. It came after images were released of a launcher rumbling through Torez (right), held by pro-Russian separatists, just two hours before the Malaysia Airlines flight was shot down.

While the footage is visibly in Russia rather than Ukraine, the exact location is not given.

A second truck is also evident in some frames.

It was filmed at around 8.45pm on Saturday. 

Reports from Ukraine suggested the BUK had been smuggled in the dead of night into Russia soon after the plane was blasted out of the sky on Thursday last week. 

It came after images were released of a launcher rumbling through Torez, held by pro-Russian separatists, just two hours before the Malaysia Airlines flight was shot down.

In a tense phone call with Vladimir Putin, David Cameron said Russia would have to 'present compelling and credible evidence' that the Kremlin-backed separatists were not to blame for 298 people - including 10 Britons - being killed despite the images and footage.

He told Mr Putin that blocking international investigators and rescue teams from accessing the site was 'indefensible', a Downing Street spokesman said. 

Mr Cameron is furious that Mr Putin has kept him waiting despite the British death toll. A Downing Street source said Mr Cameron was expressing his anger that 'ten of my citizens have just been killed with a plane that was brought down by a missile that was shot by Russian separatists'. 

A Downing Street source admitted there was 'a sense of frustration that we have not be able to speak to him sooner'. Following the call, Mr Cameron wrote on Twitter: 'I've just spoken to President Putin. I made clear he must ensure access to the crash site so the victims can have proper funerals.' 

Pro-Russian rebels today said they have recovered the black boxes from MH17 and taken them to Donetsk where they will be handed over to international investigators. 

Rebel leader Aleksander Borodai told a press conference in Donetsk: 'Some items, presumably the black boxes, were found, and they have been delivered to Donetsk and they are under our control. There are no specialists among us who could pinpoint the look of the black boxes, but we brought to Donetsk some technical items which could be the black boxes of the airliner.'