The Jerusalem Post is reporting a "mysterious explosion" in the city of Isfahan, Iran's third largest city, in which there is a nuclear reactor and other sites where uranium is being enriched for reactor fuel.
"In the afternoon, there was a noise like an explosion, but we don't have any information from security forces on the source of the noise," Gholamreza Ansari was quoted as saying.CNN has satellite photos of the damage done (did I hear somebody say that Iran claims that it was a 'gas station', not a nuclear facility...?)
The Mehr news agency said other unidentified Iranian news media had reported that the blast took place at a petrol station at a town near Isfahan city.
Isfahan is home to nuclear experimental reactors, and also a uranium enrichment facility for producing nuclear fuel.
Remember the deceptively sophisticated computer virus called the Stuxnet virus? It was discovered (by geeks at Symantec, I believe) that this virus was a digital code designed to sabotage a physical facility.
About the latest explosion in Isfahan, only time will tell what the origin was. I'm not speculating.