Saudi Arabia downs another Houthi missile over Najran

Saudi air defences have shot down another suspected Houthi missile over the southern city of Najran, the Saudi-led coalition said on Friday.

The missile arrived from rebel-held territory in neighbouring Yemen at around midnight, the coalition added.

Debris from the missile landed in residential areas of Najran without causing casualties, coalition spokesman Turki al-Maliki said in a statement released by the official Saudi Press Agency.

Yemen's Houthi rebels said in its al-Masirah news outlet that it fired a Badr 1 missile at Najran.

On Thursday, another Houthi missile was intercepted over the city of Jizan, causing no casualties.

There has been an increase in Houthi missile attacks on Saudi Arabia in recent months.

Saudi Arabia earlier this month tested a new siren system for the capital Riyadh and the oil-rich Eastern Province, in recognition of the threat posed by the Houthi rebels.

Riyadh accuses its regional rival Tehran of supplying the Houthis with ballistic missiles, a charge Iran denies. 

Saudi Arabia has also waged a brutal air campaign against Yemen, with thousands of civilians dying in bombing.

Riyadh entered the Yemen war in 2016, leading an Arab military coalition to back the internationally-recognised government, which was forced to flee Sanaa in 2015 following a Houthi takeover of the capital.

The conflict has left nearly 10,000 people dead and more than 55,000 wounded, according to the World Health Organisation, the vast majority civilians.

More than 2,200 others have died from cholera and millions are on the verge of famine in what the UN says is the world's gravest humanitarian crisis.