Syria's lost generation: Mustafa's story

An estimated 13,000 children have been killed since the Syrian civil war began. Tens of thousands more have been wounded, traumatised and orphaned.

Caroline Hawley met Mustafa Abdullah, who was born as the conflict began 5 years ago. He lost both of his parents when a barrel bomb hit his family home near Aleppo.

(Image: 5 year old Mustafa Abdullah from Syria. Credit: BBC)