The United Nations Office for the Coordination of Humanitarian Affairs (OCHA) warns that casualties, especially among children, are rising in north-west Syria as shelling and airstrikes continue to pound the areas of Idleb and western Aleppo. In its latest situation report, OCHA said Friday that more than 2,300 places have been affected by the violence, resulting in the displacement of more than 120,000 people since the escalation began in early October.