Hamas handed over to Israel the remains of one more hostage on Friday night, after insisting it was committed to returning all the dead captives still unaccounted for under Gaza's ruins after two years of war.

"Israel received, via the Red Cross, the coffin of a deceased hostage who was returned" to its security forces in Gaza and would be identified at a medical analysis center in Israel, the prime minister's office said in a statement.

Under a ceasefire agreement between Israel and Hamas spearheaded by U.S. President Donald Trump, the Palestinian militant group returned all 20 surviving hostages and the remains of nine out of 28 known deceased ones, not counting the remains handed over Friday night.