Palestinian leader Mahmoud Abbas on Thursday rejected any future role for Hamas and condemned anti-semitism, as he appealed for full global support for a state in the face of Israeli annexation threats.

Days after France led a special summit and several Western powers recognised a state of Palestine, the veteran 89-year-old leader was forced to address the UN General Assembly by video after the United States took the unusual step of denying him a visa to come to New York.

Abbas took a moderate tone in his speech as he directly took up key concerns of Israel and the United States – notably on Hamas, which is based in Gaza and is the rival to his Fatah movement.

"Hamas will not have a role to play in governance. Hamas and other factions will have to hand over their weapons to the Palestinian National Authority," Abbas said in a speech that received loud applause by delegates watching the video.

He distanced himself from the October 7, 2023 attack by Hamas – the deadliest ever on Israel – as well as frequent accusations by Israel's supporters that the Palestinians are denying the rights of Jews.

"Despite all that our people have suffered, we reject what Hamas carried out on October 7 – actions that targeted Israeli civilians and took them hostage – because these actions do not represent the Palestinian people, nor do they represent their just struggle for freedom and independence," Abbas said.

"We reject confusing the solidarity with the Palestinian cause and the issue of anti-semitism, which is something that we reject based on our values and principles," he said.

Abbas also called the nearly two-year Israeli assault in Gaza "one of the most horrific chapters of humanitarian tragedy of the 20th and 21st century" – by implication putting it alongside the Holocaust.

Abbas called for an interim committee led by the Palestinian Authority to be put in charge temporarily of Gaza, of which Hamas took control in 2007. (AFP)