Security forces in Saudi Arabia foiled suicide attacks on two Defense Ministry buildings in the capital Riyadh, authorities said Monday.
"The Saudi-led coalition's repeated promises to conduct its airstrikes lawfully are not sparing Yemeni children from unlawful attacks", said Sarah Leah Whitson, Middle East director at Human Rights Watch, in a statement.
Two of the suspects are alleged Yemeni members of IS while the others are Saudis accused of links to them, the official news agency SPA reported. Explosive belts, weapons and ammunition were also seized from the suspects.
The security operation resulted in the following: First: The arrest of the two suicide bombers, Ahmed Yaser al-Kaldi and Ammar Ali Muhammad, before they reached the target location, neutralizing their danger and controlling them by the security men.
Saudi Arabia has previously been hit by deadly bombing and shooting attacks by IS militants targeting security forces and members of the minority community.
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Two explosive belts, each weighing 7 kilogram, and nine homemade grenades, firearms and knives were seized from a rest house that they used as their hideout in Al-Rimal district where the suicide bombers were provided with training on how to wear explosive belts and how to use them.
IS has for years criticized Saudi Arabia's leadership, accusing the Western-allied oil exporter of deviating from their strict interpretation of Islam and advancing the interests of their United States enemies.
In a separate news item, SPA quoted a security source saying authorities uncovered "intelligence activities for the benefit of foreign parties" by a group of people it did not name.
Saudi Arabia is a member of the US-led global coalition that has been battling the Sunni extremist group in Syria and Iraq.