Authorities say at least seven were killed in the series of blasts in the southwestern city of Ahvaz, and two more died after two explosions in Tehran.
Late yesterday, Iranian intelligence chief Ali Yunessi said "several" suspects "linked to elements abroad" have been detained in connection with the bombings in Ahvaz. But he gave no details.
Yunessi said no progress had yet been made in finding those responsible for the explosions in Tehran.
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