Relief groups and international aid workers are struggling to deliver aid to the survivors of Haiti's devastating earthquake. Fears of unrest are also spreading as the nation begins to face its fifth day of desperation.

The global helping hand has been slowed by the capital's damaged seaport and airport. The airport turned away civilian aid planes for eight hours on Thursday because of a lack of space and fuel.

Aid workers have also been blocked by debris on inadequate roads and by survivors, gathered in the open, fearing aftershocks from the quake.

Countless dead remain unburied. Hard-pressed government workers have been burying thousands of bodies in mass graves. Increasingly the focus is now the daunting challenge of getting aid to survivors.

(CCTV January 16, 2009)