CAIRO, April 5 (Reuters) - An Israeli airstrike killed four Palestinians in the northern Gaza Strip on Sunday, local health authorities said, in the latest violence to overshadow a fragile ceasefire amid a new push by mediators to bolster the agreement.

Medics said the airstrike targeted a group of people in Jaffa Street, near the Darraj neighbourhood in Gaza City, killing four people and wounding others.

The Israeli military did not immediately comment on the incident.

In the usually lively alleyways of Jerusalem's Old City, silence reigned on Easter Sunday, with the holiday overshadowed by war and restrictions on access to the Holy Sepulchre, where the faithful commemorate Christ's crucifixion and resurrection.

On routes approaching the church, where Christians believe Jesus Christ was crucified, buried and rose from the dead, police at checkpoints screened a small number of worshippers allowed near the site.

All shops in the area were closed, heightening the sense of emptiness.

DUBAI, April 5 (Reuters) - Several "flying objects" were destroyed during the U.S. mission to find a stranded airman in Iran, the Revolutionary Guards said on Sunday according to Tasnim news agency.

"During a joint operation (Aerospace, Ground Force, Popular Units, Basij and Police command), enemy flying objects were destroyed," the group said after Iran's police command announced an American C-130 aircraft had been downed in the south of Isfahan.

Three Indonesian peacekeepers killed in two separate explosions in southern Lebanon last week were laid to rest in their hometowns on Sunday.

Peacekeeper Farizal Rhomadhon, 28, died when a projectile exploded on March 29 in southern Lebanon, where Israel and Hezbollah have been fighting since Lebanon was drawn into the Middle East war.

Two other blue helmets, Zulmi Aditya Iskandar, 33, and Muhammad Nur Ichwan, 26, died a day later when an explosion struck a logistics convoy of the UN Interim Force in Lebanon (UNIFIL), also in southern Lebanon.

By Phil Stewart and Idrees Ali

WASHINGTON, April 4 (Reuters) - The United States rescued an airman caught behind enemy lines after Iran shot down his F-15 fighter jet, the government said early on Sunday, resolving a major crisis for President Donald Trump with the war on Iran in its sixth week.

"Over the past several hours, the United States Military pulled off one of the most daring Search and Rescue Operations in U.S. History," according to a statement from Trump posted by White House Press Secretary Karoline Leavitt on X.

American commandos deployed deep into Iranian territory to rescue a downed airman, US news outlets reported on Sunday, hours after President Donald Trump announced that the crew member had been recovered "safe and sound."

Tehran said this week it had shot down an F-15 warplane, the first US fighter jet to go down inside Iran since the start of the war. Washington has not confirmed the details of how the fighter went down.

Pope Leo XIV on Sunday urged "those who have the power to unleash wars" to "choose peace" in his first Easter blessing as pontiff with the Middle East conflict raging.

Christians around the world marked the holiday under the shadow of a war that began with US-Israeli strikes against Iran on February 28 and has drawn in the whole region, convulsing the global economy.

"We are growing accustomed to violence, resigning ourselves to it, and becoming indifferent," the pope told a crowd in St Peter's Square.

A Pentagon AI program called Project Maven is at the center of the US strikes against Iran and potentially one of the most consequential transformations of modern warfare.

- What is it? -

Project Maven is the Pentagon's flagship artificial intelligence program, launched in 2017 as a narrow experiment to help military analysts make sense of the torrent of drone footage pouring in from conflict zones.

By Ismail Shakil

WASHINGTON, April 4 (Reuters) - Satellite imaging firm Planet Labs said on Saturday it will indefinitely withhold visuals of Iran and the region of conflict in the Middle East to comply with a request from the U.S. government.

California-based Planet Labs announced the decision in an email to customers and said the U.S. government had asked all satellite imagery providers to indefinitely withhold images of the conflict region.

By Enas Alashray and Phil Stewart

CAIRO/WASHINGTON, April 5 (Reuters) - U.S. President Donald Trump and Israel on Saturday stepped up pressure on Iran to open the strategic Strait of Hormuz or face attacks on its energy infrastructure, while Iranian and U.S. forces searched for a missing U.S. crew member from one of two downed warplanes.

Trump, who has sent mixed messages since the conflict began with a joint U.S.-Israeli bombardment of Iran on February 28, told Tehran that his latest deadline for a deal to end the war was fast approaching.