"Do not approach the security fence nor participate in the Hamas display that is putting you in risk".
Almost all European ambassadors skipped a reception Sunday evening in honor of the embassy move held by Israeli Prime Minister Benjamin Netanyahu.Representatives from 33 countries including Nigeria, Vietnam, Paraguay and Guatemala were there, and the latter two have said they would also move their embassies.
Instead, the transfer of power - which will turn part of a consulate building in Jerusalem into the embassy and the Tel Aviv embassy into a consulate - will occur on Monday, months after the announcement.
In an interview that aired Sunday on ABC's "This Week", White House national security adviser John Bolton said the embassy location would help the peace process.
According to the Hamas health ministry, around 50 Palestinians have been killed since protests and clashes began along the Gaza border on March 30 and hundreds of others have been wounded by gunfire.
Thousands of Palestinians are expected to protest against the move from across the occupied Palestinian territories on Monday, including the Gaza Strip as part of the Great March of Return.
Both the embassy move and the protests have symbolic timing.
During his meeting with Nickolay Mladenov, the United Nations coordinator for the Middle East peace process, Lavrov said "this impasse is getting deeper and deeper, especially in light of recent U.S. decisions on Jerusalem".
Organisers have indicated they may try to breach the border with Israel.
Israel is preparing a series of festivities to celebrate the opening of the new U.S. Embassy in Jerusalem, a move that has ignited Palestinian protests.
About two-thirds of Gaza's two million people are descendants of Palestinian refugees.
A mass border breach could trigger potentially lethal Israeli force. Rights groups say the use of potentially lethal force against unarmed protesters is unlawful. Conricus said the tunnel took months to build and that the military had been tracking its construction for a number of weeks.
Ties between the two sides reached a new low in March when Fatah blamed Hamas for an explosion that targeted Palestinian Prime Minister Rami Hamdallah's convoy during a visit to the Gaza Strip.
"The crossing will remain closed until the damage caused by the riots are repaired and will reopen in accordance with a situation assessment", the Israeli military said.
The event takes place at 7 p.m. Thunderbird Square (32388 Veterans Way) and is sponsored by UFV Amnesty International, UFV Greens, and UFV Solidarity for Palestinian Human Rights.
On Sunday, Hamas leader Ismail Haniya travelled to Cairo for talks amid speculation over whether Egypt is attempting to calm the situation. "What does he have to do with Jerusalem, ?" says another young man, on his way to Damascus Gate, one of the main entrances to the Old City.
The Israeli-annexed eastern sector of Jerusalem is sought as a future Palestinian capital - at least by those supporting Hamas' political rival, West Bank-based Palestinian President Mahmoud Abbas.