At the start of Israel's war with Hamas in October, Donald Trump loudly presented himself as the key US ally's ultimate champion.

But six months and more than 33,000 deaths in Gaza later, the Republican White House hopeful has become increasingly vague on the intensity of that support.

The former US president, not usually known for biting his tongue on any given topic, has only halfheartedly commented on the issue in two recent interviews.

"I'm not sure that I'm loving the way they're doing it," he told a conservative radio host Thursday about Israel's offensive.

Tens of thousands of Israelis protested against Prime Minister Benjamin Netanyahu on Saturday as Israel's war against Hamas in Gaza reaches its half-year mark.

Organisers said about 100,000 people converged at a Tel Aviv crossroads renamed "Democracy Square" since mass protests against controversial judicial reforms last year.

Chanting "elections now", protesters called for his resignation as the war in Gaza enters its seventh month on Sunday, AFP correspondents reported.

Israel's army said on Saturday its troops recovered the body of a hostage abducted by Palestinian militants during the October 7 attack and later murdered in captivity in the Gaza Strip.

The recovery of Elad Katzir's body brings to 12 the number of bodies of hostages which the army says it has brought home from Gaza during the war.

But it gave no comfort to his sister, who blamed Israeli authorities for his death.

The World Health Organization said on Saturday that Gaza's largest hospital had been reduced to ashes by Israel's latest siege, leaving an "empty shell" with many bodies.

WHO staff who gained access on Friday to the devastated facility described horrifying scenes of bodies only partially buried, with their limbs sticking out, and the stench of decomposing corpses.

Israel's army said on Saturday its troops recovered the body of a hostage abducted by Palestinian militants during the October 7 attack and later murdered in captivity in the Gaza Strip.

The recovery of Elad Katzir's body brings to 12 the number of hostages which the army says it has brought home from Gaza during the war.

But it gave no comfort to his sister, who blamed Israeli authorities for his death.

Thousands of people protested in Morocco's commercial capital Casablanca late on Friday against "massacres" in the Gaza Strip and against the country's normalisation of ties with Israel.

The protest -- the latest large-scale rally of its kind in Morocco -- was called by the banned but tolerated Islamist group Al Adl Wal Ihssane.

The group also organised similar gatherings in the capital Rabat and the port of Tangier.

American and Israeli negotiators are expected in Cairo over the weekend for a renewed push to reach a ceasefire-hostage deal in a war that reaches the half-year mark on Sunday.

The attempt comes after Israel made a rare admission of wrongdoing during its war against Hamas militants in Gaza. The military said it was firing two officers for the killing of seven aid workers -- most of them Westerners -- in the territory where humanitarians say famine is imminent.

Israel's admission, however, did not quell calls for an independent probe.

President Joe Biden has stood firmly by Israel amid months of mounting domestic and international outcry over the humanitarian toll in Gaza, but the killing of seven aid workers in an Israeli strike seems to have brought him the closest yet to a breaking point.

"Obviously the World Central Kitchen fiasco has turned the political pressure up," James Ryan of the Middle East Research and Information Project told AFP, referring to the US-based aid group employing the seven workers.

Palestinian Muslims marked a tense and sombre last Friday of Ramadan in Jerusalem, with minor scuffles between worshippers and Israeli police controlling the entrance to the Al-Aqsa mosque, the third holiest site in Islam.

Some 120,000 people descended on the shrine, which dominates the Old City, officials said, with grand mufti Muhammad Ahmad Hussein urging the faithful to brave the heavy police presence because of the war in Gaza.

UN Secretary-General Antonio Guterres on Friday expressed serious concern over reports that Israel was using artificial intelligence to identify targets in Gaza, resulting in many civilian deaths.

According to a report in independent Israeli-Palestinian magazine +972, Israel has used AI to identify targets in Gaza -- in some cases with as little as 20 seconds of human oversight.