Israel has cut off humanitarian supplies to Gaza in an effort to pressure Hamas into accepting a change in the ceasefire agreement to allow for the release of hostages without an Israeli troop withdrawal.

The office of the prime minister, Benjamin Netanyahu, said on Sunday it was imposing a blockade on Gaza because Hamas would not accept a plan which it claimed had been put forward by the US special envoy, Steve Witkoff, to extend phase one of the ceasefire and continue to release hostages, and postpone phase two, which envisaged an Israeli withdrawal from the Gaza Strip.

“With the end of phase one of the hostage deal, and in light of Hamas’s refusal to accept the Witkoff outline for continuing talks – to which Israel agreed – Prime Minister Netanyahu has decided that, as of this morning, all entry of goods and supplies into the Gaza Strip will cease. Israel will not allow a ceasefire without the release of our hostages,” it said in a statement. “If Hamas continues its refusal, there will be further consequences.”