India, June 23 -- One concern world after US strikes on Iranian nuclear facilities in the weekend is the whereabouts of Iran's more than 400 kilograms of uranium enriched to 60 per cent, a level not far off what's needed to make an atomic bomb.

UN nuclear watchdog International Atomic Energy Agency (IAEA) also said that it no longer knows the location of Iran's uranium after the US strikes, which President Donald Trump said "completely and totally obliterated" the three facilities targeted - Fordow, Natanz and Esfahan. Follow Israel Iran conflict live updates

Amid global question mark over the location of Iran's uranium, US officials seem to have admitted that Tehran's stockpile of the vital nuclear component remains unaccounted for.

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