The Israeli military has told Palestinians that the evacuation of Gaza City is inevitable, as its forces prepare to conquer it.
In a post on X on Wednesday, the military's Arabic spokesman Avichay Adraee said families relocating to the south would receive the most generous humanitarian aid.
Israeli tanks pushed into a new area of Gaza City overnight, forcing more residents to flee, witnesses said. Thousands have already moved because of recent Israeli advances - mostly to other parts of the city, where about a million Palestinians still live.
The evacuation call comes as US President Donald Trump is expected to chair a meeting on a post-war vision for Gaza at the White House.
In early August, Israel announced plans to occupy the whole Gaza Strip - including Gaza City, which it described as Hamas's last stronghold.
The UN and non-governmental organisations have warned that an Israeli offensive in Gaza City would have a horrific humanitarian impact.
On Wednesday, the tanks reportedly retreated to Jabalia, an area further north where they have been operating.
Bombardment also continued in Gaza City's Shejaiya, Zeitoun and Sabra districts.
Prime Minister Benjamin Netanyahu announced Israel's intention to conquer the entire Gaza Strip after indirect talks with Hamas on a ceasefire and hostage release deal broke down last month.
In Washington, US special envoy Steve Witkoff said the White House was working on a very comprehensive plan for post-war Gaza.
He gave no details but said he expected the conflict in Gaza to be settled one way or another, certainly before the end of this year.
