A mine blast killed a Saudi border guard today on the kingdom's southern frontier with war- wracked Yemen, the interior ministry said.
Saudi Arabia has led a coalition battling Iran-backed Huthi rebels in its impoverished southern neighbour for the past two years.
At least 130 Saudi members of the security forces and civilians have been killed, mainly by rockets fired from Yemen, since the coalition intervened in support of President Abedrabbo Mansour Hadi in March 2015.
The Saudi-led coalition also comprises the Gulf monarchies of Bahrain, Kuwait, Qatar and the United Arab Emirates along with Egypt, Jordan, Morocco and Sudan.
Despite the coalition intervention, the Huthis still control the capital Sanaa and much of the northern highlands adjacent to the Saudi border.
The United Nations says that more than 7,700 people have been killed over the past two years in Yemen, which also faces a serious risk of famine this year.
UN attempts at mediation and seven ceasefire accords have come to nothing.
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