Prime Minister David Cameron has urged Russia's President Vladimir Putin to do more to stop the brutal conflict in Syria.
Mr Cameron said the country's history was being written in the blood of its people, and that bloodshed is forcing increasing numbers of Syrians to flee.
ITV News has been back to the Yarmouk district of the Syrian capital Damascus.
The district was once home to three quarters of a million people. Now, just thousands remain.
ITV News International Editor Bill Neely and cameraman Dave Harman sent this report from Syria: