US officials say Israel hit Iran with a missile overnight on Friday, in what appears to be a retaliatory strike after weeks of escalating tensions between the two countries.
There are competing claims about the scale of the attack on the Isfahan region and the extent of any damage, with Iranian state media downplaying its significance.
It comes after weeks of soaring tensions between the regional rivals, which have already seen an Israeli attack on an Iranian compound in Syria, and Iran launch an unprecedented assault against Israel.
The full significance of this latest strike is still becoming clear and it is not yet known whether Iran will seek to respond.
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