Israeli troops killed dozens of Palestinians taking part in mass protests on the Gaza border on Monday as the United States opened its embassy to Israel in Jerusalem.
The U.S. relocation of its embassy from Tel Aviv fulfilled a pledge by U.S. President Donald Trump, who has recognised the holy city as the Israeli capital, but it has fired Palestinian anger and drawn criticism from many foreign governments as a setback to peace efforts.
At the embassy inauguration ceremony, Israeli Prime Minister Benjamin Netanyahu thanked Trump for â€œhaving the courage to keep your promisesâ€.
â€œWhat a glorious day for Israel,â€ Netanyahu said in a speech. â€œWe are in Jerusalem and we are here to stay.â€
Trump, in a recorded message, said he remained committed to peace between Israel and the Palestinians. He was represented at the ceremony by his daughter Ivanka and his son-in-law Jared Kushner, U.S. envoy to the Middle East.
Kushner said it was possible for both sides in the Israeli-Palestinian conflict to gain more than give in any peace deal.
â€œJerusalem must remain a city that brings people of all faiths together,â€ he said in a speech.
As the ceremony took place in Jerusalem, Palestinian protests on the Gaza border quickly turned into bloodshed
Israeli gunfire killed at least 43 Palestinians, the highest toll in a single day since a series of protests demanding the right to return to ancestral homes in Israel began on March 30.
The Palestinian Health Ministry said the dead included six children under the age of 18. Ministry officials said about 2,200 Palestinians were wounded, half of them by live bullets.
France and Britain called on Israel to show restraint and U.N. Secretary-General Antonio Guterres said he was â€œdeeply concernedâ€ by the events in Gaza.
Other responses to the violence were stronger. Regional power Turkey accused Israeli security forces of carrying out a massacre and said the U.S. Embassy move had encouraged them.
The non-government international organisation Human Rights Watch said: â€œThe policy of Israeli authorities to fire irrespective of whether there is an immediate threat to life on Palestinian demonstrators in Gaza, caged in for a decade and under occupation for a half century, has resulted in a bloodbath that anyone could have foreseen.â€
Tens of thousands of Palestinians had streamed to the coastal enclaveâ€™s land border, some approaching the Israeli fence – a line Israeli leaders said Palestinians would not be allowed to breach.
Clouds of black smoke from tyres set alight by demonstrators rose in the air. Demonstrators, some armed with slingshots, hurled stones at the Israeli security forces, who fired volleys of tear gas and intense rounds of gunfire.
â€œToday is the big day when we will cross the fence and tell Israel and the world we will not accept being occupied forever,â€ said Gaza science teacher Ali, who declined to give his last name.
Trumpâ€™s recognition of contested Jerusalem as Israelâ€™s capital in December outraged Palestinians, who said the United States could no longer serve as an honest broker in any peace process with Israel.
Palestinians seek East Jerusalem as the capital of a state they want to establish in the occupied West Bank and the Gaza Strip.
Israel regards all of the city, including the eastern sector it captured in the 1967 Middle East war and annexed in a move that is not recognised internationally, as its â€œeternal and indivisible capitalâ€.
Most countries say the status of Jerusalem – a sacred city to Jews, Muslims and Christians – should be determined in a final peace settlement and that moving their embassies now would prejudge any such deal. Peace talks aimed a finding a two-state solution to the conflict have been frozen since 2014.
The Palestinian dead on Monday included a medic and a man in a wheelchair who had been pictured on social media using a slingshot. The Israeli military said three of those killed were armed militants who tried to place explosives near the fence.
The latest casualties raised the Palestinian death toll to 88 since the protests started six weeks ago, the worst bout of bloodshed since the 2014 Gaza war. No Israeli casualties have been reported.
Thousands of people approached the barrier as the protest unfolded, some rolling burning tyres and hurling stones. Others
flew flaming kites to try and torch bushes on the other side and distract Israeli marksmen. Hundreds of Palestinians were treated for tear gas inhalation.
â€œThe IDF (Israel Defense Forces) will act forcefully against any terrorist activity and will operate to prevent attacks against Israelis,â€ the military said in a statement.
Throughout the day sirens of ambulance vehicles carrying casualties to hospitals were almost non-stop. In Gaza mosques, loudspeakers mourned the dead, who carried for burial in funeral marches.
The killings have drawn international criticism since the series of protests began but the United States has echoed Israel in accusing Gazaâ€™s ruling Hamas movement of instigating violence, an allegation it denies.
More than 2 million people are crammed into the narrow strip, which is blockaded by Egypt and Israel.
The Trump administration says it has nearly completed a new Israeli-Palestinian peace plan but is undecided on how and when to roll it out.
Palestinian Prime Minister Rami Hamdallah, in a statement on Monday, accused the United States of â€œblatant violations of international lawâ€.
â€œChoosing a tragic day in Palestinian history (to open the Jerusalem embassy) shows great insensibility and disrespect for the core principles of the peace process,â€ Hamdallah wrote.
French Foreign Minister Jean-Yves Le Drian said the U.S. move flouted international law.
â€œFrance calls on all actors to show responsibility to prevent a new escalation,â€ Le Drian said in a statement.
In London, the British government said it had no plans to move its Israel embassy from Tel Aviv to Jerusalem and it disagreed with the U.S. decision to do so. The Russian government said it feared the embassy move would increase tensions across the Middle East.
The U.N.â€™s Guterres, speaking to reporters in Vienna, said the Gaza bloodshed showed the need for a political solution.
â€œThere is no Plan B to a two-state solution in which Israelis and Palestinians can live in peace,â€ he said.
The protests are scheduled to culminate on Tuesday, the day Palestinians mourn as the â€œNakbaâ€ or â€œCatastropheâ€ when, in 1948, hundreds of thousands of them were driven out of their homes or fled the fighting around Israelâ€™s creation.