Israel and Iran launched fresh attacks on each other overnight into Sunday, stoking fears of a wider conflict after Israel expanded its surprise campaign against its main rival with a strike on the world's biggest gas field.

The strikes came after the Israeli military said it had carried out fresh strikes on Iran nuclear infrastructure sites.

By the time Israel’s advanced F-35 jet fighters swooped in to attack Iran’s nuclear facilities and military leadership, a lower-tech threat had already crossed the border and was in position to clear the way.