FACTBOX: Sunni group suspected of killing 29 in Iran

(Reuters) - A suicide bomber killed 29 people, including several senior Revolutionary Guards commanders, in southeastern Iran on Sunday, Iranian media reported.

State television said a Sunni rebel group called Jundollah (God's soldiers) was suspected of carrying out the attack.

Jundollah, or God's soldiers, are ethnic Baluch Sunni insurgents blamed for previous attacks in the region.

Here are some key details about the group:

LINKS:

* Iran, which is predominantly Shi'ite, has linked Jundollah to the Sunni Islamist al Qaeda network. It also accuses the United States of backing Jundollah in order to create instability in the country. Washington denies the charge.

* Jundollah itself says it is fighting for the rights of the Islamic Republic's minority Sunnis.

ALLIANCES:

* Abdolmalek Rigi, Jundollah's chief, said in a 2007 interview quoted by CTC Sentinel that his group was fighting for the rights of the Baluch people facing what he called "genocide" in Iran, but denied it harbored any separatist or radical sectarian agenda.

* Jundollah has evolved through shifting alliances with various parties, including the Taliban and Pakistan's ISI intelligence service, who saw the group as a tool against Iran, according to Lahore-based Pakistani analyst Ahmed Rashid.

ORIGINS:

* Jundollah, which also calls itself the Iranian People's Resistance Movement, was founded in 2002 and launched its armed campaign in 2005.

* Since early 2005 the group has sought to expand operations in the province of Sistan-Baluchistan in Iran. It has carried out kidnappings and more recently, launched suicide attacks.

* The group probably numbers fewer than 100 militants armed with explosives and small arms in Sistan-Baluchistan which borders both Pakistan and Afghanistan.

* Leader Rigi has vowed to fight the Shi'ite government in Iran unless economic conditions improve in the province.

* ATTACKS:

* In June 2005, Jundollah kidnapped Revolutionary Guard officer Shahab Mansuri and sent video of him to al-Arabiya. He was killed on July 13 and Iran blamed Jundollah.

* On December 14, 2005, an assassination attempt was made on President Mahmoud Ahmadinejad while on a visit to Sistan-Baluchistan. This attack was also blamed on Jundollah.

* In 2007, Jundollah claimed responsibility for several attacks. On February 14, 11 people were killed in an attack on a bus in the city of Zahedan targeting the Revolutionary Guard.

* In December 2008 there was a suicide attack in Saravan on a security forces headquarters. This was the first incidence of a suicide attack in Iran and was carried out by Abdul-Ghafoor Rigi, a brother of the group's leader.

* On May 28 this year, a suicide bomber killed 25 people and wounded more than 120 in an attack on a mosque in Zahedan, the capital of Sistan-Baluchistan. Jundollah claimed the attack.

EXECUTIONS

* On May 30, three men were hanged in public for involvement in the bombing. Two more were hanged on June 2. Iran executed 15 more men accused of membership of Jundollah in July.

Sources: Reuters/Janes World Insurgency and Terrorism