Can money ease Syria's humanitarian crisis?

A donor conference takes place in London where world leaders pledge $10bn to help the Syrians.



Hundreds of thousands of Syrians are being intentionally denied food, water and medicine.

According to the UN, almost 500,000 people are living under siege.

They are beseiged by forces aligned with the regime in Damascus, or by other groups. They are among the 4.6 million civilians living in "hard-to-reach" locations, according to a UN estimate.

Political leaders from across the world gathered in London for a donor conference to help the victims of Syria's war and pledged $10bn to help the Syrians.

Some of the money will go assist Syrians who have fled to neighbouring countries and to Europe.

But will money allocated to help those in need inside the country be able reach them there?