Since the rallies began some six weeks ago, at least 48 Palestinian demonstrators have been martyred and hundreds more - possibly thousands - injured.
"I am honored to join the distinguished delegation representing President Trump, his Administration, and the American people at this momentous ceremony commemorating the opening of our new US Embassy in Jerusalem, Israel", she wrote. He added: "As the years go on and the occupation entrenches itself we are here to stand shoulder to shoulder with the Palestinians until Palestine is free".
One man walked onto the stage with an effigy of US President Donald Trump dangling from a noose.
Israel has said it will prevent any border breach and has stuck to its open-fire policies, including targeting "main instigators" and those approaching the fence, despite growing worldwide criticism.
There are growing concerns that if Israel and Hamas dig in, a widespread border breach in coming days could lead to large numbers of casualties. Forty protesters were killed and more than 1,700 wounded by Israeli troops since late March. Ten of the wounded were in serious condition, including a 16-year-old boy who was shot in the head.
Friday's protest comes just three days ahead of what the Hamas leader of Gaza says will be a march by tens of thousands who could burst through the border fence into Israel. Rights groups say the use of potentially lethal force against unarmed protesters is unlawful.
Clashes were also reported in the West Bank.
Thousands of people rallied in Turkey and Jordan on Friday to protest against the decision to move the USA embassy from Tel Aviv to Jerusalem and to mark the 70th anniversary of what Palestinians call their "nakba", or catastrophe of Israel's founding.
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The annual commemoration of Nakba Day, which this year will take place on May 15, marks the day when approximately 760,000 Palestinians, estimated today to number about 5.5 million with their descendants, fled or were driven from their homes.
The largest blaze yet sparked by the firebomb-bearing kites happened Wednesday near Kibbutz Be'eri, an Israeli community located some seven kilometers (4.3 miles) east of Gaza's Bureij refugee camp.
Palestinians in Gaza have been staging weekly protests at the border fence against a decade-old blockade of the territory.
From there, smaller groups moved closer to the border fence.
Deifallah, who is unemployed like nearly half the Gaza labor force, said he would also join Monday's protest and is not afraid to die.
"The detection of the tunnel and its demolition is part of the ongoing effort to thwart the underground terror by Gaza-based terror groups headed by the Palestinian terror group Hamas", the military said, adding that the operation was part of increased efforts to detect tunnels using advanced technological means. "Hamas continues to lead the residents of Gaza to destroy the only assistance they receive", the army said. Helping reinforce the Israeli blockade, Egypt has kept the Rafah crossing point, Gaza's main gate to the outside world, closed most of the time since the Hamas takeover.
Kerem Shalom is the only crossing open to transport goods into and out of Gaza, including fuel and food.