NEW : Militants ' rocket hits Gaza house , killing Palestinian cousins . In addition , he said , Israel has no desire to hurt the civilian population in Gaza . NEW : Hamas says it will not negotiate with Israel until the release of all its prisoners and a halt to Israeli attacks on Gaza. Trucks filled with commodities cross into Gaza at three locations . Militants have fired 110 rockets since Wednesday , Israel says .
NEW : Militants ' rocket hits Gaza house , killing Palestinian cousins . NEW : Hamas says it will not negotiate with Israel until the release of all its prisoners and a halt to Israeli attacks on Gaza. Trucks filled with commodities cross into Gaza at three locations . Militants have fired 110 rockets since Wednesday , Israel says .