Israel’s security cabinet has approved a plan to take control of Gaza City, the largest urban area in the enclave and home to hundreds of thousands of people.
The step comes after Prime Minister Benjamin Netanyahu signalled his intention to eventually seize all of Gaza.
This move is seen as the likely first stage of a broader campaign.
However, it has drawn strong criticism both internationally and within Israel.
UK Prime Minister Keir Starmer has said the expansion of Israel’s offensive is wrong and will increase civilian suffering.
The United Nations has warned that wider military action could cause severe harm to Palestinian civilians and place Israeli hostages in greater danger.
In Israel, there has been a wave of public demonstrations against the plan, with rallies reported in dozens of locations.
Polls suggest most citizens oppose the decision, and critics say the government is relying on military action rather than pursuing diplomatic options.
Families of hostages have expressed deep concern, fearing the escalation will endanger their relatives and prolong their captivity.
International news organisations remain unable to freely enter Gaza under Israeli restrictions, limiting independent reporting from the ground.