World powers including Russia and the United States have agreed to plans to air-drop food and other supplies to towns besieged by the Assad regime in Syria, in a key test of the ceasefire.
The air drops will start on June 1, if the regime continues to obstruct land access to more than a dozen towns across the country in desperate need of support.
The agreement, which follows months of pressure from Syrian support groups, aid groups and British MPs, came out of talks between the major international backers of all sides in the conflict intended to pave the way for a resumption of peace negotiations in Geneva.
Little progress has been made in setting the terms of a peace deal, with the western nations backing the opposition in saying they expect President Bashar al-Assad to stand down, while Russia stands by the regime.
No new date for fresh negotiations was announced.