UN warns against Aleppo becoming giant graveyard

The United Nations has called on world powers to protect civilians in the besieged city of Aleppo before it becomes a giant graveyard.

More than 20,000 people have fled the city in recent days as pro-government forces make a series of sweeping gains.

As the rebels vow to fight on, tens of thousands of civilians are still trapped inside, ITV News Correspondent Paul Davies reports.