Syrian rebels' Aleppo offensive could amount to war crimes, UN envoy warns

Staffan de Mistura voices his shock at the indiscriminate use of heavy weapons on civilian suburbs during effort to break siege The United Nations envoy for Syria has said he is "appalled and shocked" by indiscriminate rocket warfare targeting civilians in Aleppo after three days of a fresh rebel offensive in which dozens have died. Staffan de Mistura said: "Those who argue that this is meant to relieve the siege of eastern Aleppo should be reminded that nothing justifies the use of disproportio...