World Health Organization Director-General Tedros Adhanom Ghebreyesus says Gaza's health system is "overwhelmed by the influx of mass casualties". Israel has began an offensive on Gaza City, sparking international outrage with the territory already devastated by nearly two years of war. Interested in licensing this video ? Get in touch 👉 http://u.afp.com/wvnD N.B.: AFP’s services and content are for professional use only