Yemen rebel ballistic missile 'intercepted over Riyadh'.
Saudi Arabia blasts missile out of the sky above capital city after Yemen rebels fired it at royal palace.
Saudi-Led Air Strikes Kill 136 Civilians in Yemen: U.N.
Saudi forces 'intercept Riyadh-bound Houthi missile'.
Riyadh ballistic missile attack: Saudi Arabia intercepts missile from Yemen rebels.
BREAKING: Ballistic missile fired at Saudi Arabia with explosions heard in capital.
Yemen rebel missile intercepted over Riyadh: Saudi state media.
Saudis intercept Yemen rebel missile targeting Riyadh palace.
Saudi Arabia's air defence forces have shot down a ballistic missile fired towards the capital by Yemen's Iran-backed Houthi rebels.
The Saudi-led military coalition involved in the civil war in Yemen confirmed it had intercepted the missile south of Riyadh.
A spokesman for the Houthis wrote on Twitter that the rebels had fired a Volcano 2-H missile towards the al-Yamama royal palace, targeting a meeting of Saudi leaders.
Witnesses described hearing an explosion as the missile was destroyed overhead.
Footage posted on social media shows a plume of smoke in the air after the projectile was intercepted by Saudi Arabia's military.
There were no reports of damage, state television said.
Last month, Saudi Arabia's missile defence system shot down a ballistic missile fired by Houthi rebels in Yemen, where a civil war has left thousands dead from fighting and disease, and caused widespread famine.
Nikki Haley, the US envoy to the United Nations, had previously presented evidence which she said proved that Iran has supplied short-range ballistic missiles to Houthi rebels which were then fired at Saudi Arabia.
Supplying arms to the rebels would be a violation of a UN resolution.
Meanwhile a UN boss has warned that up to seven million people are at risk of starving if the Saudi-led coalition leading the fight against the Houthis continues to block humanitarian aid access to neighbouring Yemen.
Air, land and sea ports to the Arabian Peninsula country were closed to stem the flow of arms to the rebels.
The UK, US and other allies have supplied weaponry to the Saudi-led coalition which has been accused of killing civilians through air strikes and the blockade.
