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The missile attack, thought to have been launched by Shiite Houthi fighters, was manufactured by Iran, Saudi Arabia claimed. They said the attack was a “clear act of aggression” by Iran and “could rise to be considered an act of war”. In a statement, Saudi Arabia accused Iran of supplying the missile to Houthi rebels.

EXPRESS Saudi Arabia have blocked Yemen's land, sea and air access

The kingdom said the closures would be temporary and take into account the work of humanitarian organisations. Iran has denied arming the Houthi militants and suggested that the ballistic missile was locally produced. More than 10,000 people have died and more are threatened with famine as war rages between a Saudi-led coalition and Shiite rebels.

Shocking images after ISIS smash British war heroes graves Mon, June 26, 2017 A dozen masked militia ripped apart a cemetery in the former British colony of Aden, Yemen Play slideshow Dominic Ryan 1 of 9

The blockade comes after a Saudi Prince was killed in a helicopter crash near the Yemeni border, state media has reported. Prince Mansour bin Muqrin was the deputy governor of the Asir province. It is not currently known why the helicopter crashed. Saudi Arabia intercepted a ballistic missile, fired by rebels in Yemen, close to a major airport near the capital Riyadh.

GETTY More then 100,000 people have been killed in the conflict so far