A Hamas Policeman looks at the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Chen Xu)

A Palestinian boy walks by the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Chen Xu)

Palestinians look at the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Wissam Nassar)

Palestinians look at the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Wissam Nassar)

A Palestinian boy looks at the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Chen Xu)

Palestinians look at the rubble of Civilian Affairs Bureau of Ministry of Interior after it was hit by an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Chen Xu)

Smoke rises after an Israeli air strike in Gaza City, on Nov. 16, 2012. 23 Palestinians were killed in a series of Israeli airstrikes on the Gaza Strip since Wednesday. (Xinhua/Chen Xu)

A Palestinian woman removes rubble from her damaged house following an Israeli airstrike southern Gaza Strip city of Rafah on Nov. 16, 2012. The Israeli cabinet on Friday authorized the draft of 75,000 reserve soldiers, as the Israel-Gaza conflict was intensifying, local media reported. (Xinhua/Khaled Omar)

Palestinians gather at the rubble of damaged houses following an Israeli airstrike southern Gaza Strip city of Rafah on Nov. 16, 2012. The Israeli cabinet on Friday authorized the draft of 75,000 reserve soldiers, as the Israel-Gaza conflict was intensifying, local media reported. (Xinhua/Khaled Omar)

Palestinians gather at the rubble of damaged houses following an Israeli airstrike southern Gaza Strip city of Rafah on Nov. 16, 2012. The Israeli cabinet on Friday authorized the draft of 75,000 reserve soldiers, as the Israel-Gaza conflict was intensifying, local media reported. (Xinhua/Khaled Omar)

Palestinians gather at the rubble of damaged houses following an Israeli airstrike southern Gaza Strip city of Rafah on Nov. 16, 2012. The Israeli cabinet on Friday authorized the draft of 75,000 reserve soldiers, as the Israel-Gaza conflict was intensifying, local media reported. (Xinhua/Khaled Omar)

A Palestinian man removes rubble from his damaged house following an Israeli airstrike southern Gaza Strip city of Rafah on Nov. 16, 2012. The Israeli cabinet on Friday authorized the draft of 75,000 reserve soldiers, as the Israel-Gaza conflict was intensifying, local media reported. (Xinhua/Khaled Omar)