The poverty and isolation felt by some in Canada's immigrant communities could one day explode into riots like those in Paris, one expert warns.

"It's like having a Third World situation in the middle of a First World country," said John Furedy, a University of Toronto psychology professor. "I can't predict when this will occur, but Canada is moving towards the Parisian system."

Violence in the French capital was in its 11th night yesterday, sparked by the deaths of two young people apparently fleeing police.

It has been seen as the expression of pent-up anger by youths, many Muslims of North African and black African origin, at racism, unemployment and their marginal place in French society.

Until newcomers feel welcome in Canadian society, the country risks similar violence, Furedy said.

Furedy recommends a melting-pot model similar to the U.S. "They are Americans first," he said. "The better a country can assimilate its immigrants so their first loyalty is to the country, the less likely you are to have this problem."

But University of Toronto history professor Mohamad Tavakoli said Canadians typically embrace diversity.

"(Newcomers) feel like they belong here. They don't feel excluded," he said, noting the French try for cultural sameness.