By IBRAHIM BARZAK, Associated Press Writer 4 minutes ago Israel pressed ahead with its incursion into the southern Gaza Strip on Saturday as airstrikes killed five Palestinians, including a mother and her two children, and tanks rolled to the edge of Rafah, officials said. Sixteen Palestinians have been killed since Israeli troops and tanks moved into southern Gaza three days ago, part of a monthlong offensive in the Mediterranean coastal strip. In the first airstrike a 16-year-old girl, Kifah Natour, and her brother, Amar, 15, were killed said Dr. Ali Musa, the director of the local hospital. Their mother, Huda, 50, later died of her wounds. Four other people, including their 13-year-old brother, were seriously wounded when the missile hit. Musa said the family had been trying to flee their home as Israeli tanks advanced. The army said it had targeted groups of militants. A 19-year-old militant from the Islamic Jihad and a 21-year-old Hamas gunman were killed in two other airstrikes in the area, their groups said. Early Saturday Israeli tanks moved into positions on the eastern side of Rafah, took over an abandoned Palestinian security training camp and sealed off roads leading in and out of the town from that side, Palestinian security officials said. A day earlier Israeli troops conducted house-to-house searches in the area. Israel launched its Gaza offensive after a June 25 cross-border raid by Hamas-linked militants who tunneled into Israel and attacked an army post, killing two soldiers and capturing a third. Israel has demanded the release of the soldier and an end to the firing of homemade rockets at Israel by Gaza militants. Israeli ground forces have moved in and out of several parts of the territory regularly since then, confronting armed militants and leaving behind considerable destruction. Also Saturday, the Gaza-Egypt border crossing was expected to open for one-way traffic into Egypt after Palestinian and Israeli officials and European monitors reached an agreement Friday, said Palestinian negotiator Saeb Erekat. It would be open Saturday and Sunday. It would be the second time since the latest fighting erupted in Gaza June 25 that the terminal would be opened, but the previous time was for Palestinians returning home from Egypt. Earlier agreements to reopen the crossing from Gaza to Egypt broke down at the last minute. Israel, which has been criticized for creating a humanitarian crisis in Gaza, said it opened another border checkpoint to allow 160 truckloads of food and medical supplies into Gaza, as well as gasoline and diesel. The United Nations said Thursday it was concerned that "with international attention focusing on Lebanon, the tragedy in Gaza is being forgotten." It called on both Israel and the Palestinian militants to recognize their obligations to protect civilians during hostilities, but singled out Israel for criticism. Israel is fighting on two fronts, against Islamic militants in Gaza and against Hezbollah guerrillas in southern Lebanon http://news.yahoo.com/s/ap/20060805...78U7TwUewgF;_ylu=X3oDMTA3MXN1bHE0BHNlYwN0bWE-