Israel's campaign against Iran's nuclear program has significantly impacted Natanz, incapacitating centrifuges and potentially causing an underground implosion, an Israeli official tells The Wall Street Journal.

Israel and Iran have traded more missile attacks despite international calls for a halt to the fighting, with neither country showing signs of backing down as the conflict between the regional foes raged for a third day.

Israeli fighter jets destroyed several aboveground buildings at Natanz, Iran's main uranium enrichment facility, images show.