Blast heard in Saudi capital Riyadh - Reuters correspondent

An explosion was heard in the Saudi Arabia capital Riyadh on Tuesday, according to a Reuters correspondent, but the cause was not immediately known.

Saudi-owned Al Arabiya TV cited local reports of an explosion and videos circulating on social media of a missile being intercepted over Riyadh.

On Saturday, the Saudi-led military coalition engaged in Yemen had said it had intercepted and destroyed an "enemy air target" launched towards Riyadh.