Overnight, drones struck an Iranian defence factory in the capital city of Isfahan, according to early Sunday reports from the state-run IRNA news agency.
It released a statement from the Defense Ministry stating that the attack took place late on Saturday and just slightly damaged a rooftop. According to the report, Iranian air defences shot down three drones.
Who was accused of carrying out the attack was not disclosed by the government.
Separately, official television in Iran reported that an oil refinery in an industrial area close to the city of Tabriz in the northwest caught fire. It stated that the reason was currently unknown and displayed video of firefighters putting out the fire.
Israel and Iran have been at war in secret for a long time, with clandestine Israeli attacks against Iranian nuclear and military targets.
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