Palestinian protesters burn tires during a protest on the Gaza Strip's border with Israel, Monday, May 14, 2018. Credit: Khalil Hamra | AP

ZEITOUN, Gaza Strip — Israeli soldiers on Monday killed 25 Palestinians demonstrating along the border fence and wounded more than 900 in the bloodiest day in Gaza since the 2014 war with Israel, according to the Gaza Health Ministry.

Thousands of Palestinians gathered on the edges of Gaza as the U.S. Embassy opened in Jerusalem, fanning out along the fence in what appeared to be some of the largest demonstrations yet.

At a gathering point east of Gaza City, organizers urged demonstrators to burst through the fence, telling them Israeli soldiers were fleeing their positions, even as they were reinforcing them.

At the barrier, young men threw stones and tried to launch kites carrying flames in hopes of burning crops on the other side.

Occasional sporadic gunfire could be hear over the noise of the crowd and a constant stream of ambulances roared back and forth from the fence, ferrying away the wounded.

Nirma Attalah, 29, said the deaths were just galvanizing Gaza residents to keep on demonstrating despite weeks of losses.

“My brother was shot in the head in this place,” she said, adding that it was two weeks earlier. She had come Monday with her whole extended family to the protest.

“We are here for Jersualem, for Palestinian land,” she added.

Israel dropped leaflets urging Palestinians to stay away from the fence.

“Save your lives and work on building your futures,” it said.

Farther from the fence, food stalls sold snacks, sandwiches and juice, while loud music played in an oddly carnival atmosphere.

“People have come out of the rubble to say we will not forget our rights,” Yousef Abu Saleh, 25, said. “The American administration is adopting the Israeli story and stealing our right of return.”

While some said they would abide by official calls to keep the demonstrations peaceful, others talked about their enthusiasm to break into Israel and wreak havoc.

“We are excited to storm and get inside,” Mohammed Mansoura, 23, said. When asked what he’d do inside Israel, he said, “whatever is possible, to kill, throw stones.”

Another young man, Khamis, carried a large knife and said he wanted “to get inside and kill.” He declined to give his last name.

Israeli Defense Forces said at least 35,000 people were protesting in 12 different places along the fence — more than twice as many as in past weeks of protest. The military said it would “act forcefully against any terrorist activity.”

Demonstrations are planned across the Palestinian territories to protest the U.S. decision to shift its embassy from Tel Aviv to Jerusalem and recognize the city as Israel’s capital, seen as a major blow to the Palestinian cause.

But they are expected to be largest in Gaza, where six weeks of demonstrations dubbed the “March of Return” will reach a climax this week. Before Monday, Israeli snipers already killed nearly 50 Palestinians in the unrest at the fence, according to the Gaza Health Ministry, and shot 2,240 more.

The embassy move has added extra friction to what was already a highly charged week. Scuffles broke out in Jerusalem’s Old City on Sunday as Israelis celebrated the “reunification” of the city, an annexation not recognized internationally. The opening of the embassy on Monday is followed by Nakba Day on Tuesday — when Palestinians mark the anniversary of mass expulsions and flight that displaced an estimated 700,000 people when Israel was founded 70 years ago.

This year, organizers of demonstrations in Gaza and the West Bank are spreading them over two days to coincide with the embassy opening.

The result has been the incongruous juxtaposition of a star studded galas, including first daughter Ivanka Trump and her husband, Jared Kushner, in Jerusalem while Palestinian prepare for demonstrations not far away. As guests sipped wine in front of a stage with a backdrop of American and Israeli flags Sunday, the mosques in Gaza were urging people to attend protests.

The Israeli military said it deployed two additional brigades of soldiers on the edges of the barricaded strip, roughly doubling the number of forces. A second and third defense line of troops will be set up and reservists have been called in. An additional brigade was deployed in the occupied West Bank.

In Jerusalem, protests are planned at the same time as the embassy opening, with one in an Arab neighborhood just a few blocks away. More than 1,000 police officers are working with the U.S. Embassy to coordinate security for Monday’s event, a police spokesman said.

Hamas has thrown its weight behind the demonstrations in Gaza, which have deflected Palestinians’ frustration with their own leadership as residents of the blockaded 140-square-mile territory struggle to make ends meet.

More than 70 percent of Palestinians living in Gaza are refugees or descendants of refugees from areas in Israel, and the demonstrations have rallied for their U.N.-endorsed right of return.

“Our people have the right to break the walls of this big prison,” Hamas’s leader in Gaza, Yahya Sinwar, said in a briefing with foreign journalists on Sunday. “We went out to knock the wall of the prison and declare it clearly that we won’t accept to die slowly.”

Israeli forces withdrew from Gaza in 2005, though the United Nations still classifies it as occupied because of the level of control wielded by Israel, which restricts the movement of people and goods. Egypt has also only sporadically opened its border.

Israel says that Hamas is using the demonstrations as a cover to carry out attacks, pointing out that some of those killed are known militants.

Until Monday, the death toll at demonstrations had been on the decline, with only one Palestinian killed on Friday, and no deaths the previous week.

On Saturday, protesters burned the main cargo terminal to Gaza, causing $2.8 million in damage and further choking off supplies.

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