An explosion shook western Tehran in the early hours of Friday morning, causing widespread power failures in two residential areas, the Islamic republic's media reported.
The precise location of the explosion, the third in so many weeks, was unclear, but there are several known military and training facilities in the area, which Western analysts said could be the target of sabotage.
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The explosion is another in a series of mysterious "incidents" plaguing sensitive Iranian sites in recent weeks. Foreign pundits have already hedged that the incidents could be the result of an Israeli campaign to undermine Tehran's nuclear program.
Prime Minister Benjamin Netanyahu has not commented on the incidents in Iran, but Defense Minister Benny Gantz dismissed these speculations, saying that not everything that happens in Iran could be blamed on the Jewish state.
On Tuesday, an explosion reportedly damaged a factory south of Tehran. According to Iranian media reports, two people were killed and three were injured in the blast at the Sepahan Bresh factory in the Kahrizak district.
On Saturday, a blast reportedly damaged a power plant in the Iranian city of Ahvaz. A few hours later, Iranian media said a chlorine gas leak at a petrochemical center in southeast Iran was to blame.
On July 2, an explosion damaged Iran's Natanz nuclear facility, and a week prior, a blast was reported at the Parchin military complex, which defense analysts believe holds an underground tunnel system and missile production facilities.
On Tuesday, Iran accused Israel of these incidents and called for action against it following the damage to the Natanz facility.
"This method Israel is using is dangerous, and it could spread to anywhere in the world," government spokesman Ali Rabiei said during a press conference. "The international community must respond and set limits to these dangerous actions by the Zionist regime."
Iranian Supreme Leader Ayatollah Ali Khamenei threatened retaliation against anyone who attacked his country in any way, stating that Iran's nuclear program was "unstoppable."
Israeli media reported last week that the country was bracing for possible retaliation by Tehran if it determines that Jerusalem was behind the explosions.
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