A suicide bomber succeeded in killing 15 members of Iran's elite, and seemingly untouchable, Revolutionary Guards force last month. The attack was carried out in the poverty stricken Sistan Baluchestan Province, and was the deadliest attack in the region in decades. Thirty-five civilians also perished. Jundollah, a group which says it is fighting for the rights of the Baluch people, and thought to be hiding in neighbouring Pakistan, said it carried out the assault.
Now Nazanine Moshiri, Al Jazeera's correspondent in Iran, has been allowed to access the dangerous border area to investigate what lies behind the region's problems.