UNITED NATIONS - United Nations Secretary-General Ban Ki-moon has condemned Sunday’s attack on a hospital supported by Médecins Sans Frontières (MSF), a French medical humanitarian organization,  in Yemen’s Sa’ada province, which killed at least four people and injured many others.

In a statement issued by his Spokesperson, the secretary-general expressed his sincere condolences and deepest sympathies to the families of the victims and to the Yemeni people. This is the latest in a series of attacks on health facilities. “The Secretary-General is extremely concerned about the increasingly limited access to essential health care services for Yemenis,” the statement said. “He emphasizes that hospitals and medical personnel are explicitly protected under international humanitarian law and that any intentional attack against civilians and civilian infrastructure is considered a serious violation of international humanitarian law.”

The statement further called for this incident to be investigated “through prompt, effective, independent and impartial mechanisms to ensure accountability.” “The Secretary-General again repeats his call on all parties involved in the Yemeni conflict to immediately cease all hostilities and resolve differences through peaceful negotiations facilitated by his Special Envoy,” it added.