collapse a house on Israeli soldiers. On the third day of operations, an IDF unit wandered into a Palestinian ambush. Thirteen Israeli soldiers were killed and three of the bodies were captured before a Shayetet 13 naval commando unit could retrieve them. After the ambush, the Israeli military developed a tactic that allowed units to advance farther and more safely into the camps. Israeli commanders would send an armored bulldozer to ram the corner of a house, creating a hole. An IDF Achzarit would then enter the hole, allowing troops to clear the house without going through booby-trapped doors. Palestinian resistance was halted following the adoption of the bulldozer method, and most residents of the Hawashin neighborhood surrendered before it was leveled. Palestinian commander Hazem Qabha refused to surrender and was killed. Throughout the Battle of Jenin, and for a few days afterwards, the city and its refugee camp were under total closure. There was much concern at the time about possible human rights violations occurring in the camp. Allegations of a massacre in Jenin were spread by Palestinians in order to create pressure on Israel to halt the operation. Claims of complete destruction of the Jenin refugee camp, a massacre of 500 civilians, and mass graves being dug by Israeli soldiers were proven false after a United Nations investigation. Reports of a large-scale massacre were found to be untrue, a result of confusion resulting from the Israeli refusal to allow entry to outside observers, and/or Palestinian media manipulation. Ultimately, the Jenin incursion resulted in the deaths of 52 Palestinians. According to Israel, five were civilians and the rest were militants. Human Rights Watch reported that 27 militants and 22 civilians, as well as three unidentified persons, had been killed, based mostly on witness interviews. Israeli losses totalled 23 soldiers killed and 75 wounded. Nablus The IDF launched an incursion into Nablus with two regular infantry brigades and one reserve armored brigade. The city was estimated to have held over 8,000 Palestinian militants, in addition to Palestinian security forces. Israeli forces quickly occupied most of the city. Clashes took place around refugee camps, and Israeli attack helicopters fired rockets at Palestinian positions in the main square and neighboring streets. The main attack focused on the Nablus Casbah. The Golani Brigade entered the Casbah, engaging the Palestinians in heavy street combat and using armored bulldozers and Achzarit APCs to clear away