JERUSALEM — Thousands of Palestinian protesters clashed with Israeli forces in east Jerusalem and the West Bank, demonstrators in the Gaza Strip burned U.S. flags and pictures of President Donald Trump, and a top Palestinian official said Vice President Mike Pence would not be welcome in the West Bank, in a show of rage Thursday over the American decision to recognize Jerusalem as Israel’s capital.

Israeli forces were bracing for the possibility of even stronger violence on Friday, when tens of thousands of Palestinians attend weekly prayers at Jerusalem’s Al Aqsa Mosque, the city’s most sacred Islamic site. In Gaza, the supreme leader of the Hamas militant group called on Palestinians to launch a new uprising against Israel.

The Palestinians were blindsided by Trump’s move to depart from decades of U.S. policy on Jerusalem and upend longstanding international assurances that the fate of the city would be determined in negotiations.

The Palestinians seek east Jerusalem, captured by Israel in 1967, as their capital. Israel claims the entire city, including east Jerusalem, home to sensitive Jewish, Muslim and Christian holy sites, as its undivided capital. The opposing claims lie at the heart of the Israeli-Palestinian conflict and have often spilled over into deadly violence.

The Palestinians declared three “days of rage,” shuttering schools and businesses, and staging angry demonstrations at Damascus Gate, one of the entrances to Jerusalem’s Old City, and cities across the West Bank and Gaza.

“We are here. We believe in our rights and one day it (will) become Jerusalem, the capital for the Palestinian people,” declared Rania Hatem, a protester outside the Old City.

The Israeli military reported demonstrations in some 30 locations across the West Bank on Thursday, saying Palestinians had hurled stones and firebombs at troops. A military official, speaking on condition of anonymity under briefing guidelines, said troops were instructed to use minimal force and avoid live fire to avoid escalating tensions.

In the West Bank, troops fired water cannons and tear gas to disperse a crowd in Bethlehem, the biblical town of Jesus’ birth, just weeks before thousands of foreign tourists are expected to visit for Christmas celebrations. In Ramallah, the seat of the Palestinian government, protesters set tires on fire, sending thick plumes of black smoke over the city.

Palestinian officials said dozens of protesters were slightly wounded, most from tear gas inhalation. Spontaneous protests also took place in Gaza, with angry youths burning tires, American and Israeli flags and Trump posters.

A senior Palestinian official said the Palestinians would not meet with Pence during his visit to the region later this month when Pence is expected to visit Israel and make a stop in the Palestinian city of Bethlehem.  “We will not receive him in the Palestinian territories,” said the official, Jibril Rajoub.

However, a White House official said Pence still plans to meet with Palestinian President Mahmoud Abbas as scheduled and said it would be “counterproductive” to cancel. The official spoke on condition of anonymity to discuss upcoming plans.