RAMALLAH, Sept. 18 (Xinhua) -- The Palestinian leadership is considering canceling the interim peace deal signed in 1993 between Palestine Liberation Organization (PLO) and Israel after failing to reach a final-status solution, a Palestinian official said Tuesday.

"The Palestinian leadership is seriously looking into the possibility of canceling Oslo accords," said Saeb Erekat, the Palestinian chief negotiator.

Erekat said that Israel "thwarted all efforts to revive the peace process," prompting the Palestinian leadership to consider the withdrawal from the Oslo agreement. "Such a step will not be an easy decision," he added.

The agreement was signed in 1993 as a declaration of principles for self-government arrangements. Its term was set for five years, but so far no Palestinian independent state was established as the deal had called for.

"Israel insists on marginalizing all the agreements and resorting to imposing de-facto-situation policies," Erekat said.

The last round of peace talks between Israel and the Palestinians stopped in 2010 over a dispute on Jewish settlement activities in the West Bank.

The Palestinian leadership will start debating on annulling the Oslo agreement after it submits a request to the United Nations, where it seeks to become a non-member state in the international organization's General Assembly, according to Erekat. The request is scheduled to be submitted on Sept. 27.