An explosion rocked a power station in Isfahan Province in central Iran early Sunday afternoon, the Islamic republic's state-run IRNA news agency reported.
The blast was caused by the wear and tear of a transformer at the power plant in Islamabad, the managing director of the Isfahan power company told IRNA.
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According to IRNA, there were no casualties as a result of the blast, which was the latest in a series of mysterious explosions and fires around Iranian military, nuclear and industrial facilities since late June, including in Natanz, where its main uranium enrichment center was badly damaged in what the New York Times described as a deliberate effort by the US and Israel.
On Saturday, an oil pipeline reportedly went up in flames in western Iran. According to local accounts and reports on social media, the blast rocked the restive and oil-rich region of Khuzestan in the country's southwest.
Footage circulating on social media captured a huge fire at the site, but no injuries were reported. Iranian authorities did not offer any immediate explanations of the incident.
According to some of the available accounts, however, the blast was claimed by the Arab Struggle Movement for the Liberation of Ahvaz, a secessionist armed group designated as a terrorist entity by the Iranian regime.
Last Wednesday, at least seven ships caught fire at the Iranian port of Bushehr, Iran's Tasnim news agency reported. Pictures from the incident showed a large pillar of smoke billowing from the area.
A day earlier, on July 14, Iran executed a former employee of the defense ministry who was convicted of spying on behalf of the Central Intelligence Agency. It was the second such execution in the past month.
Iran's top security body said on July 3 that the cause of the Natanz fire had been determined but would be announced at a later time. Some Iranian officials have said it may have been cyber sabotage and one of them warned that Tehran would retaliate against any country carrying out such attacks.
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