In pictures: Aftermath of N Korea blast

1 of 9 School bags are piled near the scene of last Thursday's train blast which killed over 150 people. About half the 1,300 injured are said to be children.

2 of 9 Hospitals are said to be running low on vital supplies to treat the large number of casualties.

3 of 9 Aid workers say many suffered serious facial injuries from burning grit and glass thrown out by the blast.

4 of 9 Family members keep an anxious bedside vigil. Hospitals are said to be overflowing with patients and their relatives.

5 of 9 At a devastated primary school, North Korean workers sift the debris.

6 of 9 Those lucky enough to escape injury have been salvaging valuables from the rubble.

7 of 9 International aid workers have had an unprecedented view of life inside the secretive communist republic.

8 of 9 Workers in the Chinese border town of Dandong load trucks with aid supplies. China is North Korea's long-standing ally.

9 of 9 A Chinese man crossed this stream to pass an aid package to the North Korean border guard.