Donald Trump’s peace plan, which was announced on Tuesday, led to a rare show of unity between the two key Palestinian factions: both Hamas and Fatah rejected the proposal, which they claim envisages US recognition of the Palestinian state as being biased heavily towards Israel.

A senior leader of Hamas, the Palestinian organization governing the Gaza Strip, has urged Muslim and Arab leaders to reject Donald Trump’s Middle East peace plan and said that all options are now on the table for Palestinians to react.

The head of the Hamas Political Bureau Ismail Haniyeh has sent a letter to the Arab League, the Organisation of Islamic Cooperation and the African Union Commission, according to Iran-based Press TV.

In it, he warned that Palestinians “will never forgive any kind of participation or support” for Trump’s proposals, which favor “Zionist settlers and occupation schemes against the land and the holy sanctuaries”.

“All options have become legitimate for our Palestinian people and their forces in the face of the decisions of this aggressive and unfair deal which targets the Palestinian presence, land, people, history, and identity,” Haniyeh said.

He added that he had spoken with Mahmoud Abbas, the Palestinian president and the head of the Palestinian Authority government in the West Bank.

The conversation was meant to “unify the Palestinian ranks in the face of this aggressive deal” and discuss “joint action” to address it, he noted.