Baroness Valerie Amos
Media playback is unsupported on your device

Baroness Amos: '2.5m people in Syria are in need of assistance'

14 August 2012 Last updated at 22:11 BST

The United Nations humanitarian chief, Baroness Amos, is in Syria to discuss stepping up emergency aid for civilians caught in the fighting.

Efforts to provide relief have been hampered by the escalation of violence in the capital Damascus and the commercial centre of Aleppo.

The UN says around 2.5m people across the country are now in need of assistance.