This is reported by The Wall Street Journal, citing US officials.
While the US and Israel are "looking for new opportunities" to curb Tehran's nuclear and military ambitions, "Israel carried out a covert UAV attack on an Iranian defense facility," the newspaper said.
Earlier it was reported about a powerful explosion in Iran.
The IRNA agency reported that the incident in one of the centers for the production of ammunition of the Iranian Ministry of Defense occurred due to an attack by unmanned aerial vehicles.
There were no reports of Russians injured in the explosions in Iran.
According to the Al Arabiya TV channel, American aircraft were involved in the drone attack on a military facility in the Iranian city of Isfahan.