This linked article seems to indicate that officials are downplaying the idea of sabotage, indicating that the blast might have been caused by left over munitions poorly stored. On the other hand it states that the weekly meetings were to discuss “misguided groups” like the Wahabis and Bahais. My guess, some misguided extremist Wahabis don’t like being the object of such attentions.
> the blast might have been caused by left over munitions
> poorly stored.
Confimring our suspicions, by the way, that “Mosque” is Moslem-speak for “Arsenal”.