The Saudi-led Arab Coalition for the Support of Legitimacy in Yemen, said on Thursday that targeting the Houthis group (Ansar Allah) oil installations in the kingdom "war crimes."
The Coalition Forces Command said in a statement published by the official Saudi Press Agency that "the actions of the Houthi-backed terrorist organizations supported by Iran of attacks on vital installations in the Kingdom are serious violations of international humanitarian law and customary rules amounting to war crimes."
The Coalition Forces threatened that they would not hesitate to follow all terrorist elements throughout Yemen and would seize all the sites from which the terrorist attacks were launched, stressing the continuation of their operations "until the military and legitimate targets are neutralized and the Houthi militias can not use them."
The coalition carried out several air strikes Thursday morning on the Yemeni capital Sanaa, controlled by the Houthis in response to the attacks on Tuesday's drones that targeted two oil pumping stations belonging to Aramco in the provinces of Dawadmi and Afif in Riyadh.
On Wednesday, the United Arab Emirates, another key ally in the West-backed coalition, threatened to "retaliate hard" to any Houthi attacks on UAE targets.
Yemen has been racked by a 4-year bloody conflictbetween the internationally-recognized Yemeni government's forces, backed by a Saudi-led coalition, and the Iranian-backed Houthi rebels who ousted the government in 2014.
On 26 March 2015, the Arab coalition launched a military campaign against the Houthi troops to reinstate the official government of President Hadi.
The conflict has triggered what the UN calls the world's worst humanitarian crisis, with most of the population in need for a type of humanitarian aid and immediate protection, including 14 million people risking famine and some 1.8 million children suffering malnutrition