In the days following the Haiti earthquake, George Alagiah reported from the destroyed capital Port-au-Prince.

Aid was getting through but relief efforts were being slowed by bottlenecks, with many thousands of survivors fending for themselves.

George looks at the challenges facing the aid operation and visits a mass grave outside the capital.

GMT with George Alagiah is broadcast weekdays at 1200 and 1230 GMT on BBC World News channel. Find out more information about regional broadcast times here.