Hamas agreed to a one-week cease-fire pledge on Sunday but the Israeli military has no plans to leave the Gaza Strip. "We can't talk about a timetable for withdrawal until we know the cease-fire is holding," a spokesperson for Israeli Prime Minister Ehud Olmert explained. "If there is a danger Hamas is going to deliberately torpedo the cease-fire, and we will have to reinitiate offensive actions against Hamas, for that reason we have to be reticent about withdrawing our forces." The spokesperson, added: "If the cease-fire holds, we can start a process of moving out." Meanwhile on Sunday, Palestinian militants kept firing rockets into southern Israel, vowing to continue the 22-day conflict.