Israel and Iran exchanged a fresh wave of missile attacks overnight into Sunday, escalating tensions and raising fears of a wider regional conflict. The escalation followed Israel’s expansion of its surprise offensive against its primary adversary, including a strike on the world’s largest gas field.

Early Sunday, Israel’s military announced it had struck the Iranian defence ministry headquarters in Tehran. It also claimed to have hit several locations around the capital that it described as being “related to the Iranian regime’s nuclear weapons project.”

These sites, according to Israel’s military, were connected to Iran’s nuclear ambitions, though both US intelligence agencies and the International Atomic Energy Agency have consistently stated that Iran was not developing a nuclear weapon prior to Israel launching its wave of airstrikes on Friday.