The Saudi led military coalition continues to bombard Yemen from the air.
Nine civilians have been killed east of the capital Sanaa earlier making it the third air strike to claim civilian lives since Saturday.
The United Nations is growing ever more concerned about the targeting of schools and hospitals.
On Monday a Doctors Without Borders hospital was attacked leaving at least 15 dead while on Saturday ten children were killed when a school in northern Yemen was destroyed.
Alessandra Vellucci from the UN said: “The Secretary General notes that the parties to the conflict in Yemen have damaged or destroyed over 70 health centres including three other MSF (Medecins Sans Frontieres)-supported facilities. He is deeply disturbed by the intensification of air strikes and continuing ground fighting and shelling, especially in populated areas.”
A Reuters witness at the scene of the hospital attack in the Abs district of Hajja province said medics could not immediately evacuate the wounded because war planes continued to fly over the area and emergency workers feared more bombings.