UN envoy warns Aleppo risks becoming 'one giant graveyard'

A top UN envoy today pleaded with the Security Council to help break the siege of Aleppo, warning residents of the Syrian city were at risk of extermination.
"For the sake of humanity we call on -- we plead -- with the parties and those with influence to do everything in their power to protect civilians and enable access to the besieged part of eastern Aleppo before it becomes one giant graveyard," said Stephen O'Brien, the UN under-secretary-general for humanitarian affairs.