I can say without a trace of irony, "Thank God for the BBC":

Police in the deprived, largely immigrant suburb of Husby shot a man dead last week after he reportedly threatened to kill them with a machete.

The founder of a local youth group told Swedish media the riots were a reaction to "police brutality".

Prime Minister Fredrik Reinfeldt told reporters on Tuesday that Sweden would not be intimidated by rioters.

'Opportunistic'

On Tuesday night, cars were torched in western and southern Stockholm, and stones were thrown at police officers and firefighters. One area affected, Rinkeby, saw similar rioting in 2010.

Kjell Lindgren of the Stockholm police told Aftonbladet newspaper that the unrest had spread from the original rioting in Husby.

"It feels like people are taking the opportunity in other areas because of the attention given to Husby," he said.

Earlier on Tuesday, Prime Minister Reinfeldt said: "We've had two nights with great unrest, damage, and an intimidating atmosphere in Husby and there is a risk it will continue.

"We have groups of young men who think that that they can and should change society with violence. Let's be clear: this is not okay. We cannot be ruled by violence."

More than 80% of Husby's 12,000 or so inhabitants are from an immigrant background, and most are from Turkey, the Middle East and Somalia. (emphasis mine)