Palestinians look at the border during a military operation by Egyptian security forces to demolish some buildings in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90

The Egyptian army observation tower on the border during a military operation by Egyptian security forces to demolish some buildings in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90

Smoke rises after a house was blown up during a military operation by Egyptian security forces in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90

Egyptians evacuate their homes during a military operation by Egyptian security forces to demolish some buildings in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90

Egyptian security forces take part in a military operation to demolish some buildings in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90

Smoke rises after a house was blown up during a military operation by Egyptian security forces in the Egyptian city of Rafah near the border with southern Gaza Strip, on October 29, 2014, as Egypt began setting up a buffer zone along the border with the Hamas-run territory to prevent militant infiltration and arms smuggling following a wave of deadly attacks. The move, which is set to result in the demolition of hundreds of homes, comes after a suicide bombing in the Sinai Peninsula killed at least 30 soldiers last week. Photo by Abed Rahim Khatib/Flash90