Syria's opposition on Monday agreed to attend a new round of UN-sponsored peace talks set for this week in Geneva after a landmark ceasefire led to a dramatic drop in fighting, AFP reports.

The truce between President Bashar al-Assad's regime and non-jihadist rebels, brokered by Russia and the United States, has defied expectations and led to the first significant decline in violence in Syria's nearly five-year civil war.

The United Nations is hoping it can now restart talks on a political transition that collapsed last month in Geneva.