Arab officials are warning they could withdraw their landmark offer of peace and full ties with Israel in exchange for a return of Arab lands, unless Israel explicitly accepts the initiative.

Saudi Foreign Minister Prince Saud al-Faisal, whose country sponsored the Arab peace initiative, adopted by Arab nations in 2002, warned Thursday that "despair would force us to review these options," including withdrawing the proposal.

He accused Israel of "sabotaging" the initiative, which is now "facing grave danger."