Palestinians are calling on the international community to help resolve their conflict with Israel, while rejecting U.S. President Donald Trump's peace plan, known as "The Deal of the Century."

A senior Palestine Liberation Organization (PLO) official on Monday called for the establishment of an international assembly based on rights and justice, so as to end the Israeli occupation of the Palestinian territories.

According to a press statement, Hanan Ashrawi, member of the PLO Executive Committee, said that "an international assembly will be able to present alternatives and confront the dangers that threaten peace."

"This assembly can also end the illegal Israeli occupation," she said while meeting with a British parliamentary delegation in Ramallah.

Political ties between the Palestinian Authority and the United States have been severed after U.S. President Donald Trump declared Jerusalem as the capital of Israel in 2017. On Jan. 28, Trump announced the U.S. Mideast peace plan in the presence of Israeli Prime Minister Benjamin Netanyahu, which was strongly rejected by all Palestinian factions.

The PLO published on its official website that the U.S. plan involves 300 violations of international law and international resolutions. Salleh Ra'fat, a PLO Executive Committee member, said in a press statement that "the state of Palestine will never surrender and will keep working with the United Nations Security Council to issue a resolution that rejects the deal." He called on the EU countries to recognize the state of Palestine and also called on the international community to hold an international conference "to implement the international resolutions and oblige Israel to fully withdraw from the Palestinian territories it occupied in 1967."

Sabri Seidam, a member of Palestinian President Mahmoud Abbas' Fatah Party's Central Committee, called for a strict international intervention to rescue the principle of the two-state solution, as the U.S. plan "flares the conflict but doesn't end it."

"The European Union is asked to find an initiative to resolve the Israeli-Palestinian conflict and present this initiative to President Trump to be an alternative to his plan," Seidam told Palestinian Radio.

The Palestinian Foreign Ministry said in a press statement that the international community has to move against the U.S. peace plan. "There has been no much time left to salvage the two-state solution," said the statement, adding that "neutral or reluctant positions towards this dangerous U.S.-Israeli plan are not feasible in preventing a U.S. coup against international law." The Foreign Ministry's statement also said that "large parts of the U.S. deal has been already implemented, mainly in issues related to Jerusalem and the Palestinian refugees."

Foreign ministers of 27 EU countries on Monday held a monthly meeting in Brussels to discuss the major developments in the Middle East, particularly, the U.S. peace plan. Shadi Othman, EU communication officer in Jerusalem, told journalists in Ramallah that the peace process in the Middle East "topped the issues that were discussed during Brussels meeting."

"The European side seeks a stable, unified and clear position that is based on the international legitimacy criteria and reiterates that the only way for solving the conflict is through direct negotiations based on international peace references," he said. "The EU will keep backing the principle of the two-state solution on 1967 borders."

Palestinian dilemma

While the Palestinians categorically reject Trump's proposal, what happens next may add salt to their injuries. 

Bruce Maddy-Weitzman, senior fellow at the Moshe Dayan Center for Middle Eastern and African Studies at Tel Aviv University, has told CGTN possible outcomes following Palestinian rejection.

"Palestinian rejection to Trump's plan could trigger a unilateral decision taken by Israel to annex the West Bank. And if Israel does follow through its decision, it could ignite violent protests whose consequences are unknown," he said. "It will also compel the Palestinian Authority to suspend security cooperation with Israel. But if the status quo continues without major deterioration on the ground, the plan will be eventually forgotten."

But uncertainties cloud the prospect of resolute actions led by each side.

"The PA will soon have a succession issue, as its president, Mahmoud Abbas, is nearing the end of the line, age and health-wise and Israel is on the verge of a post-Netanyahu era. No one knows if Trump will continue to be president after 2020.  So there aren't strong leaders at the moment who will be able to either push the plan forward or lead a concerted opposition to it," Maddy-Weitzman added. 

(With input from Xinhua)