In a speech before the United Nations General Assembly, he said that as Israel’s refusal to commit to the agreements signed “render us an authority without real powers”.
Mr Abbas added: “We cannot continue to be bound by these agreements.”
It was Abbas’s most serious warning yet to Israel that he might walk away from engagement with Israel and dissolve the Palestinian Authority. He stopped short of accompanying his threat with a deadline.
He had threatened to drop a “bombshell” in the speech, prompting speculation he would sever ties with Israel over its settlement expansion and other hardline policies.
“We declare that we cannot continue to be bound by these agreements,” he said after discussing the Oslo Accord. “Israel must assume responsibilities as occupying power,” he said.
“As long as Israel refuses to cease settlement activities, Israel has left us no choice but to insist that we will not remain the only one committed to implementation of those agreement.”
Abbas also invited Israel “to assume its responsibility as an occupying power” in the West Bank — but stopped short of announcing the unilateral dissolution of the Palestinian Authority, which would put an end to the security co-operation with Israel.
Israel “intensified settlement activity in most of West Bank,” breaching the Oslo accord, Abbas said, using the term “apartheid” to describe the occupation.
“We declare we cannot continue to be bound by these agreements while Israel continues to violate them,” he said.
“Israel is working with all its efforts to destroy the two-state solution,” Abbas continued, calling upon the UN to provide international protection to the Palestinians
“It is no longer useful to waste time in negotiations just for the sake of negotiations. We are determined to preserve the unity of our land and our people. We will not accept temporary solutions or a fragmented state.”
“There are two legal systems in occupied Palestine, one for Palestinians and one that privileges settlers.”
Just an hour before, speaking at the UN Security Council, Venezuela also called on the UN to not “be hypocritical” and to be a leader in enforcing international law, which Israel is violating, and combat terrorism at its roots.
Venezuela accused the Israeli state of terrorist acts against Palestine.
Abbas went on to describe “Palestine” as “the country of holiness and peace. It is the birthplace of Christ, the messenger of love and peace...and the night journey of Mohammed, peace be upon him, who was sent as a messenger to the world.”