Syria conflict: Civilians' plight intensifies
The UN's emergency relief coordinator Valerie Amos is in Syria to discuss ways of getting aid to the estimated two million people caught up in the country's conflict.
Diplomats warn that, unless the violence eases, it will be impossible to get emergency relief to the worst affected areas.
Syria's leaders are still firmly refusing to allow more international aid to reach their citizens.
Kevin Connolly reports from Beirut.