Saudi Arabia has lashed out at Iran over the firing of a ballistic missile towards Riyadh by Houthi rebels in Yemen, citing evidence that Tehran was behind the attack and labelling it a potential “act of war”. A statement issued on Monday via the state news agency SPA denounced the “flagrant military aggression by the Iranian-controlled Houthi militias” and said that an examination of the debris “confirmed the role of Iran’s regime in manufacturing [this and a previous missile] and smuggling them to the Houthi militias in Yemen for the purpose of attacking the Kingdom, its people, and vital interests”. The statement accused Iran of violating the United Nations Security Council Resolution 2216, which prohibits states from supplying weapons to Yemeni armed groups. The statement also noted that Saudi Arabia would temporarily close all Yemeni ground, air and sea ports while investigating how the missiles were smuggled in. Yemen’s national airline, Yemenia, subsequently cancelled all flights to the country. Iran’s Revolutionary Guards and political leaders have rejected allegations of the country’s involvement in the strike.