Saudi air defences on Tuesday intercepted a ballistic missile fired towards the Saudi capital Riyadh, Saudi-owned channel al-Arabiya reported in a news flash quoting a Saudi-led military coalition.
Reuters reporters heard a blast in Riyadh on Tuesday and saw a plume of smoke rising above the Saudi capital.
The plume of smoke appeared to be rising from the northeast of the capital.
The coalition is battling the armed Houthi movement in neighbouring Yemen. The Houthis said earlier they had fired a missile towards Riyadh.