[2] According to the announcement of the authorities of the Islamic Republic of Iran, the centrifuge devices in this center built under the ground,[3] at a depth of 40 to 50 meters of the earth.

[10] On January 16, 2011, the New York Times newspaper claimed in an investigative article that Israel and the United States have never officially confirmed that they were involved in the spread of the Stuxnet virus.

[11] On January 11, 2012, Mostafa Ahmadi Roshan, the "Deputy Commercial Officer" of Natanz Nuclear Facility, was assassinated and killed by a bomb explosion in Seyed Khandan area of Tehran.

These acts of vandalism include placing explosives in the air sensors of the centrifuges to deliberately cause power outages.

Also, the International Atomic Energy Agency has announced that Iran is building an advanced centrifuge assembly plant in the underground of Natanz Nuclear Facility.