Isfahan is home to Iran's uranium conversion facility (UCF), which operates under IAEA surveillance. Iran's main uranium enrichment facilities are situated in the city of Natanz to the north-east of Isfahan, where many of the country's centrifuges are installed. In recent years, Iran's nuclear activities at Natanz have been at the centre of an international dispute.
Earlier this month, a huge explosion at a missile base in the west of Tehran killed more than 30 members of Iran's revolutionary guards, including Major General Hassan Tehrani Moghaddam, a senior commander described as the architect of the country's missile programme.
In recent years, Iran's nuclear and missile programmes have experienced a series of setbacks in what has been widely seen as a covert war against the Islamic republic.
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