A royal family member appeared to confirm the missile was aimed at a palace meeting.'Coalition forces confirm intercepting an Iranian-Houthi missile targeting (the) south of Riyadh.There are no reported casualties at this time,' the government-run Center for International Communication wrote on its Twitter account.
A Saudi-led coalition launched a war against the Houthi rebels and their allies in March 2015 that grinds on today, a campaign overseeing by Crown Prince Mohammed.
The missile fire drew an immediate rebuke from President Donald Trump, who blamed Iran in part for the attack from Japan where he is visiting dignitaries.
The intergovernmental organisation has failed to agree a peace deal to end the fighting, which has left more than 8,600 people dead since the coalition entered the conflict.
More than 2,100 people in Yemen have been killed since a chlorea outbreak in April as hospitals struggled to secure basical supplies amid a coalition air and sea blockade.
A Saudi-led coalition became involved in 2015 to help prop up Hadi's government after Shiite Huthis seized the capital Sanaa.
Rebels continue to hold much of Yemen and the United Nations has warned the country is on the brink of famine.
This is the moment Yemen rebels filmed themselves launching a ballistic missile that was intercepted by Saudi Arabia just seconds from hitting King Salman's palace.
Eyewitnesses said they saw a plume of smoke over the nation's capital Riyadh after hearing a blast at about 10.50am yesterday - shortly before the scheduled unveiling of the Saudi budget.
State television has claimed there are no reports of damage so far while.
Officials said the missile was 'Iranian-Huthi', days after Washington accused Tehran of manufacturing a missile fired by the Yemeni rebels at the Saudi capital last month.
Without Oasis, I would have never met the love of my life.