Samia with her grandfather
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Syria Aleppo attacks: 'The world has turned its back on Syria'

The UN is investigating claims that chlorine gas was dropped on rebel held areas of the Syrian city of Aleppo last week.

Quentin Sommerville reports on the plight of just one of the victims of the attack, two-year-old Samia.

Go to next video: 'No truce in Aleppo, only shelling'