A video of the plane crash which killed the president of Poland apparently shows survivors being shot.
Spoiler
The film, which is being circulated on the internet, has fuelled conspiracy theories about the accident.
It purports to show armed Russian-speaking men killing passengers minutes after the crash which killed Lech Kaczynski and dozens of members of the Polish government and military elite.
The grainy, blurred footage - on which sounds like that of gun shots are heard - has been dismissed as a 'malicious hoax' by a Russian aviation expert.