KEY POINTS:
A Polish immigrant tasered to death by Canadian police appears to have been asking for their help in a non-violent fashion, when he was tasered.
A video of unarmed Polish immigrant Robert Dziekanski collapsing and dying after being tasered at Vancouver Airport has sparked outrage across Canada, with Canadian Public Security Minister Stockwell Day calling for a full investigation.
'I've asked for a review relating to the use of Tasers ... this is a tragic and grievous incident. We want to find out answers that can prevent these things from happening in the future," Mr Day said.
MP Penny Priddy, from the opposition New Democratic Party asked:"Is it standard operating procedure for the Royal Canadian Mounted Police to use Tasers when there is no obvious physical threat?"
The video cast severe doubt on the official Royal Canadian Mounted Police account of the incident, which said officers fired Taser shots at Dziekanski after he became abusive.
But it appears the agitated 40-year-old was simply trying to communicate in his native language, which Canadian police couldn't understand, mistaking him for Russian.
Copies of the video have been quick to appear on video site YouTube, with one Polish blogger translating Mr Dziekanski pleas: "I want to get out, help me find the way...Police! Police! Can't you help me?"
The video - broadcast repeatedly on Canadian and US television networks - showed Robert Dziekanski shrieking in agony after he was hit by 50,000-volt blasts a month ago.
The video, taken by a bystander at the airport, initially shows a sweating and upset Dziekanski throwing a small table at a window in the luggage retrieval section and shouting at airport staff. By the time a team of four police officers arrives, he has calmed down and is standing still.
Police then fired at least two shots from Taser stun guns at Dziekanski, who collapsed to the ground howling in pain. At least three policemen could be seen kneeling on Dziekanski, who died shortly afterward at the airport.
Poland's ambassador to Canada said the video had deeply shocked him and said Warsaw wanted to learn all it could about an investigation the Mounties have launched into the case.
