India, June 22 -- In a major blow to the nuclear establishment in Iran, the US military on Saturday struck three key nuclear sites in Iran - Fordow, Natanz, and Esfahan.

It is not just a major escalation in the Israel-Iran conflict which the US has now inserted itself into, but the strikes have also raised concerns of a possible radiation, given all targets were nuclear sites.

However, Iran's nuclear regulatory authority has said that there is no danger to residents living near these facilities. The nuclear sites struck by the US did not contain materials that cause radiation, an official at the Iranian Broadcasting Corporation said.

"No signs of contamination have been recorded," Iranian state media quoted the country's National Nucle...