Israel has launched a series of strikes against Iran, targeting the country’s nuclear program and other military infrastructure. Iran has launched its own strikes in retaliation.

President Donald Trump said the United will come down on Iran “at levels never seen before” if the Middle Eastern country attacks.

Israel launched an expanded assault on Iran on Sunday, targeting its energy industry and Defense Ministry headquarters, while Tehran unleashed a fresh barrage of deadly strikes. The simultaneous attacks represented the latest burst of violence since a surprise offensive by Israel two days earlier aimed at decimating Tehran’s rapidly advancing nuclear program.