The Interior Ministry announced early today the soldier's death in the kingdom's Najran region as a result of shelling and intensive fire yesterday afternoon.
The war in Yemen began in 2014 after the Shiite rebels known as Houthis and their allies seized Yemen's capital, Sanaa.
In March 2015, a Saudi-led coalition of Arab countries began a military campaign against the Houthi forces. It said its mission served in part as a counterbalance to Iran's influence following its nuclear deal with world powers.
The US, which had provided the coalition targeting assistance, pulled back its presence over it.