The Saudi-led coalition fighting Yemen's Shiite rebels says a missile fired over Riyadh has been intercepted.
The Yemeni rebels said they targeted the royal palace in the kingdom's capital.
The announcement by the coalition was carried by Saudi state TV on Tuesday as people in the kingdom posted videos on social media showing a small cloud of smoke rising in the sky.
Mohammed Abdul-Salam, spokesman for the Shiite rebels in Yemen, said they fired a ballistic missile targeting the Yamama palace.
He tweeted that a ballistic Volcano H-2 missile was used in the attack.