Sept. 9 (UPI) -- The Israeli military on Tuesday ordered around 1 million residents of Gaza City to immediately evacuate to the south, warning an attack of "great force" was imminent.

Israeli Prime Minister Benjamin Netanyahu has told residents of Gaza City to evacuate as the military stepped up its assault on the Palestinian territory's main urban centre.

Israel told Gaza City residents to evacuate immediately, warning of intensified airstrikes and expanded ground operations. Meanwhile six people were killed in a shooting at a Jerusalem bus stop. Follow DW for more.

The Israeli military advised Gaza City residents to evacuate to a "humanitarian zone" in Khan Younis. That's as the expanded ground operation continues. DW has more.

Israeli Prime Minister Benjamin Netanyahu says Gaza City is a Hamas stronghold and capturing it is necessary to defeat the group.

A spokesperson did not specify when the new offensive would start, but another spokesman previously said it would not be announced to preserve the element of surprise.