“We received 10 dead children and 28 wounded, all under the age of 15, who are victims of airstrikes on a Koranic school in Haydan,” in Sa’ada province, said MSF spokeswoman Malak Shaher, adding the attack took place Saturday.
Shaher told AFP that MSF had received the children at a field hospital near the school before they were transferred to a public hospital.
Houthis posted pictures and videos on Facebook of dead and bloodied children wrapped in blankets.
Houthi spokesman Mohammed Abdulsalam said warplanes “targeted” children at the Jomaa bin Fadhel school, in a “heinous crime”.
The United Nation’s children agency, UNICEF, confirmed the attack warning that “with the intensification in violence across the country in the past week, the number of children killed and injured by airstrikes, street fighting and landmines has grown sharply.”
“UNICEF calls on all parties to the conflict in Yemen to respect and abide by their obligations under international law,” it said, AFP reported.
“This includes the obligation to only target combatants and limit harm to civilians and civilian infrastructure.”
Saudi Arabia reacted angrily to a decision in June to blacklist the coalition after a UN report found the Arab alliance responsible for 60 percent of the 785 deaths of children in Yemen last year.
UN chief Ban Ki-moon had accused Saudi Arabia of threatening to cut off funding to UN aid programs over the blacklist, a charge denied by Riyadh.
The UN says more than 6,400 people, mostly civilians, have been killed in Yemen since the coalition air campaign began in March last year.