The Israeli Army is attempting to destroy a series of tunnels in southern Gaza that are used for smuggling arms into the strip from Egypt. A photographer accompanied Israeli soldiers on a recent mission into southern Gaza. This is his record for BBC News Online of what he saw.
The operations include widespread house demolitions that have been criticised as a war crime.
On the right and bottom of the picture is Egyptian territory. In the background are parts of Rafah city and the refugee camp. The tall buildings on the skyline are in Khan Younis.