The UK’s foreign secretary has urged Israel to "stop and think seriously" about any ground offensive in Rafah and the impact on the estimated 1.5 million people sheltering in the southern city.
Lord David Cameron reiterated his call for a pause in the fighting, with the long-term aim of securing a "sustainable ceasefire".
It comes as the Hamas-run health ministry in Gaza says Israeli strikes overnight killed at least 67 people in the overcrowded city.
Israel says it carried out a "wave of strikes" while rescuing two hostages who are now "in good medical condition".
Israel launched its operations in Gaza after Hamas killed more than 1,200 people on 7 October, and took 253 people hostage.
The Hamas-run health ministry in Gaza says more than 28,000 Palestinians have been killed and more than 67,500 injured since then.
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