Hamas's exiled deputy leader said Sunday that the militant group was committed to a cease-fire with Israel but not until the Jewish state stops its aggression on Palestinians. Moussa Abu Marzouk's comments in the Syrian capital came as Israeli troops withdrew from the Gaza Strip on Sunday morning as an unexpected cease-fire went into effect in hope of ending five months of deadly clashes. But Hamas and another Palestinian militant group, Islamic Jihad, continued firing volleys of homemade rockets into Israel, saying they had no intention of stopping their attacks. "We are still committed to the quiet, but Israel is not committed. Israel is continuing its aggression and when it stops the aggression, the rockets will stop," Abu Marzouk told The Associated Press. "If the enemy stops the aggression the quiet will go on." The rockets landed in open fields and caused no injuries, and Prime Minister Ehud Olmert ordered the army to show restraint.