Migrant crisis: 'A journey of death' from Syria to Kos

Mohammed, his wife and two children fled Islamic State in Raqqa, Syria.

Mohammed described their "journey of death" from Turkey to Kos to Panorama's John Sweeney.

Watch Panorama Europe's Border Crisis: The Long Road, on Wednesday 30 September at 22:35 on BBC One, or catch up later online.