Israel pushes Gazans into Rafah

Israel pressed its blistering assault in the Gaza Strip on Saturday as fears grew of a push into Rafah, the southern city teeming with civilians uprooted by the nearly four-month war.

A constant barrage of air strikes and tank fire rocked Khan Yunis during the night, an AFP journalist said of the main city in southern Gaza that has been the focus of the Israeli offensive.

The health ministry in Hamas-run Gaza said more than 100 people were killed across the Palestinian territory overnight, mostly women and children. The Israeli army said its forces killed "dozens of terrorists" in northern and central Gaza over the past 24 hours.

Hundreds of thousands of Palestinians displaced by the fierce fighting have fled south to Rafah since the outbreak of the war, with their tents cramming spaces along streets and in parks.

The city that had been home to 200,000 people now hosts more than half of Gaza's 2.4 million population, the World Health Organization said on Friday.

The United Nations humanitarian agency OCHA said it was deeply concerned about the escalation of hostilities in Khan Yunis, which has pushed more and more people south.

Image analysis released Friday by the UN satellite centre UNITAR based on footage collected on January 6 and 7 showed "approximately 30 percent" of Gaza's structures had been affected by the war.

The soaring civilian death toll in Gaza, as well as fears among Israelis over the fate of the hostages, have fuelled calls for a ceasefire.