Two suicide bombers have killed at least 22 people at a Shia mosque in south-eastern Iran, officials say.This follows a suicide bombing in October 2009 in Zahedan that killed 37 and targeted at least five senior Revolutionary Guard officers. That attack also took place in Iran's Baluchestan province that abuts both the Afghan and Pakistani border.
The first bomber blew himself up at a checkpoint outside the Jamia mosque in the city of Zahedan, with a more deadly second blast moments later.
Worshippers and Revolutionary Guards were reportedly among the dead.
Regional media reported that a Sunni rebel group, Jundullah, said it carried out the attacks in revenge for the hanging of its leader by Iran in June.