Hayya, said in a pre-recorded speech on Thursday the group had not rejected the latest U.S. proposal for a ceasefire with Israel but demanded changes that would secure the end of the war in the enclave.

The latest friction in negotiations comes as the fighting nears 20 months of war, and as desperation grows among hungry Palestinians and relatives of hostages in Gaza.

Hamas has said it's reviewing the latest US proposal for a new ceasefire in Gaza and hostage release deal, though reports suggest the Palestinian armed group may reject it. Full details of the agreement have not yet been disclosed,