A Kassam rocket fired from the Gaza Strip landed in an open area in the Sha'ar Hanegev region Saturday afternoon. No casualties or damage were reported in the attack. Following a week of near-daily Palestinian violations of the Israeli-Hamas cease-fire, senior defense officials said Thursday that the truce could be in its final stages and that as a result the IDF was preparing for possible future incursions into the Gaza Strip. "It is not clear how much longer the cease-fire will last and we need to be prepared for an operation in Gaza," a senior defense official told The Jerusalem Post shortly after two Kassam rockets struck the western Negev Thursday afternoon. On Thursday evening Hamas said it had arrested the two men who had fired the rockets, according to an official from the Fatah-affiliated Al-Aksa Martyrs Brigades. Reuters quoted the official as saying that Hamas's security forces had detained two of its members who were part of a Kassam launching squad.