A top official in Iran blamed Israel on Monday for a sabotage attack at its underground Natanz nuclear facility in what Tehran called an act of "nuclear terrorism.".

Foreign Ministry spokesman Saeed Khatibzadeh represented the first official accusation leveled against Israel for the incident Sunday that cut power across the facility.

IRAN'S NATANZ NUCLEAR FACILITY SUFFERS ELECTRICAL PROBLEM: STATE TV.

The New York Times reported that the Natanz nuclear facility suffered from a power failure that seemed to have been caused by an intentional explosion.

The Jerusalem Post reported that Iran boasted on Saturday that it was operating advanced centrifuges at the facility

Ali Vaez, the Iran project director at the International Crisis Group, told the Times, "It’s hard to imagine that it was a cyberattack.The likely scenario is that it either targeted the facility indirectly or through physical infiltration."