Explosion in Iran

While reports are still unconfirmed as to whether the explosions were related to nuclear testing, there were explosions in the southern portion of Iran.

Three strong explosions jolted southern Iran on Thursday, the semi-official Fars news agency reported, but gave no information about possible casualties.

"Three explosions were so strong that they shook windows of houses," the agency said, adding that the explosions happened in Khorramshahr in the border province of Khuzestan.

Khuzestan, the heartland of Iran's oil industry, has been simmering with unrest among the province's mostly Arab population for more than a year.

Here is one blogger's report of what might have happened.