Earthquake: One week on

One week on from the earthquake that struck Turkey and Syria, the death toll has passed 33,000. Rescue attempts continue, and survivors are living in tents for fear their homes may still collapse. In Syria, there are serious difficulties in getting aid convoys through the single official border crossing point that is open. Today's Mishal Husain hears from BBC correspondents in both countries to learn about the ongoing humanitarian effort. (IMAGE CREDIT: REUTERS/Sertac Kayar)