In the America that I grew up in, my first (and probably only) reaction to an incident such as this would have indeed been accident. And that it very well may be. So says Occam's Razor. But, even without donning a tinfoil hat, it's increasingly hard to at least consider muzzie involvement. Their cunning evil knows no bounds and their actions throughout the world only serves to make them objects of suspicion.
Given there was a fire early in the day that was extinguished, but then flared up again, this screams accident.
I have a feeling that through all of this there were no evacuations could end up with someone in jail, though.