Israel said it struck a nuclear site near Tehran on Wednesday, while Iran said it fired hypersonic missiles as the arch foes traded fire for a sixth day. Iran's Revolutionary Guards said they had launched hypersonic Fattah-1 missiles at Tel Aviv.

Israel’s sweeping attack across Iran struck at the heart of Tehran’s nuclear program, delivering a blow to the country’s ability to enrich uranium and potentially setting its nuclear ambitions back by months or years.

Israeli strikes on Natanz, Fordow and Isfahan pose little regional radiation risk but could release plumes of toxic chemicals, experts said.