Deputy Prime Minister Shimon Peres on Sunday called an IDF missile attack on Palestinian Authority Prime Minister Ismail Haniyeh's office in Gaza City overnight Saturday a "clear warning" to free kidnapped IDF soldier Cpl. Gilad Shalit. Peres said the attack on Haniyeh's office came "in the middle of the night," when Israeli officials knew Haniyeh would not be present. "It was a clear warning that he has to stop this double behavior," Peres told CNN's Late Edition. "Either it's a government with all the responsibilities of a government, or it's a terrorist organization, with all the consequences that stem from it."