Saudi Arabia's air defence forces on Wednesday (April 11th) "intercepted a missile in the skies over Riyadh", Saudi-owned Al-Arabiya television reported.
An AFP journalist in Riyadh earlier heard three explosions over the Saudi capital, which has been previously targeted from Yemen by the Iran-backed Houthis (Ansarallah).
Separately, the Arab coalition announced that two Houthi drones had been shot down in southern Saudi Arabia.
Saudi air defence forces said they had intercepted a Houthi scout drone over Abha International Airport in Asir province, which led to a temporary suspension of air traffic.
Arab coalition spokesman Col. Turki al-Maliki said air defence systems had detected and destroyed the unidentified object.
A second drone was approaching a "civilian object" in Jizan province, al-Maliki said in a statement carried by the Saudi Press Agency.