Dozens are dead and wounded after an airstrike hit a bus carrying children in northern Yemen Thursday, according to the International Committee for the Red Cross (ICRC) and eyewitnesses.
The International Committee of the Red Cross said it was sending supplies to ICRC-supported hospitals to support an influx of casualties.
He added that this operation was "implemented in accordance with worldwide humanitarian law and customary rules".
A Yemeni child is transported to a hospital after being wounded in a reported airstrike on the Iran-backed Huthi rebels' stronghold province of Saada, on Thu., Aug. 9, 2018.
The attack was also denounced by the United Nations children agency, UNICEF.
Saudi Arabia and Sunni Muslim allies have been fighting in Yemen for more than three years against the Houthis, who control much of north Yemen including the capital Sanaa and drove the government into exile in 2014.
The missile was sacked from Amran province in northern Yemen on Wednesday night, the coalition said in a statement published by the Saudi Press Agency.
Yemeni tribal leaders told the AP the Saudi-led US -backed coalition fighting Shiite Houthi rebels was behind the airstrike.More news: Trump attacks report that he’s anxious about son’s exposure to Mueller inquiry
"Shrapnel from the intercepted missile scattered over residential areas, leaving a Yemeni resident killed and 11 other civilians wounded", the coalition said.
According to Al Jazeera, the Saudi coalition claimed it had targeted "missile launchers", but Yemen-based reporters who have witnessed numerous attacks in civilian-populated areas vigorously disputed the claim.
In response, Houthi spokesman Mohammed Abdulsalam called the coalition statement "absolutely ridiculous".
Images broadcast by Houthi media showed scores of bloody children, some still wearing their backpacks as they were loaded onto stretchers.
The United States called on the Saudi-led coalition to launch an investigation into the events that unfolded in Yemen on Thursday.
"The Coalition will take all necessary measures against the terrorist, criminal acts of the terrorist Iranian-Houthi militia, such as recruiting child soldiers, throwing them in battlefields and using them as tools and covers to their terrorist acts", Col Al Maliki said.
It has launched thousands of air strikes in a campaign to restore the internationally recognised government of President Abdrabbuh Mansour Hadi.
The strike was carried out by the Saudi Arabian-led coalition, which is backed in this war by the U.S.
The Houthis have fired a number of ballistic missiles at the Saudi capital, Riyadh, and other cities. We urge all parties to agree to an immediate cessation of hostilities, return to the negotiation table to commit to a ceasefire and cooperate with the U.N. Special Envoy Martin Griffiths.