NEW : Meanwhile , in Cairo , Egypt , Palestinian Authority President Mahmoud Abbas was meeting with Egyptian President Hosni Mubarak to discuss a possible cease-fire . Fighting nears densely populated Gaza City , witnesses say . Sources : Reuters and AFP Score: 6 Leader of Gaza City rocket teams is killed , Israel says . Israeli jets apparently violate Egyptian airspace .
NEW : Fighting nears densely populated Gaza City , witnesses say . Sources : Reuters and AFP Score: 6 Leader of Gaza City rocket teams is killed , Israel says . Israeli jets apparently violate Egyptian airspace .