Houthi rebels reportedly fired a number of missiles towards a Saudi government building.
The channel said in a tweet that the group had launched a "Qasef 1" drone aircraft heading for the Abha airport in the southwestern Saudi city of Aseer.
Last month, one man was killed in Riyadh by debris after the military shot down a flurry of missiles, the first casualty of the Yemen war in the Saudi capital.
Loud blasts were heard in the night sky above Riyadh.
Al Masirah TV, run by Yemen's Houthis, said earlier the group had targeted a distribution facility in the city belonging to state oil giant Saudi Aramco.
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In a statement, the Saudi-led coalition fighting the Houthis in Yemen said it downed a drone targeting an airport in the southwestern province of Abha and another in Jazan.
Saudi Arabia accuses Iran of backing the Houthis, a charge Iran has denied.
The attacks mark the fourth time in five months that missiles have flown over Riyadh, as the Houthis step up efforts to demonstrate they can reach the Saudi capital, threatening to escalate a regional rivalry between Iran and Saudi Arabia.
"The air force announced the execution of air strikes with the Qasef-1 aircraft on Aramco in Jizan (province)", the channel said on its Twitter account, referring to a drone the Houthis unveiled previous year.
Evidence documented by the Conflict Armament Research group, or auto, said the Qasef-1 drone appears to be Iranian-manufactured and has been supplied in batches to Houthi forces in Yemen. Two other missiles were intercepted over the southern areas of Jazan and Najran.