Palestinian Authority Chairman Mahmoud Abbas threatened on Monday to submit complaints against Israel in international institutions if it does not return to the negotiating table, according to a report in the Ma’ariv newspaper.

Abbas, who spoke in Egypt during a ceremony in which the cornerstone for a new PA embassy in Cairo was laid, once again said that the PA would not return to the negotiating table until Israel stops construction in Judea and Samaria and agrees to accept the indefensible pre-1967 lines as a basis for future borders.

“These are not conditions but commitments that Israel must respect,” Abbas was quoted by Ma’ariv as having said. “When it accepts both of them we will be ready to return to negotiations.”

Abbas also revealed some of the contents of a letter that he plans to send to Prime Minister Binyamin Netanyahu. PLO official Saeb Erekat said on Saturday that Abbas had prepared a letter to Netanyahu and that he made a request to meet Netanyahu and give him the letter.

The letter says, according to Abbas’ speech, “Because of you, the Palestinian Authority is no longer an authority. You took all its powers and liabilities. We have nothing left, is that acceptable to you or not?”

Abbas said the letter will be delivered last week and reiterated that a continued stalemate in negotiations would lead to the PA once again contacting international institutions to advance their status to the status of a country. “That is our right and we will turn to the UN again,” Ma’ariv quoted him as having said.

The report noted that Abbas said during a meeting of Arab League leaders in Iraq last week that the letter will be centered on the issue of the Jewish communities in Judea and Samaria, which he claimed “destroy the PA which wants to bring about independence. The negotiations will not lead to anything because Israel does not recognize the 1967 lines.”

The report added that Abbas claimed that “Israel does not want to see two states side by side, unlike the rest of the world.”

Peace talks between Israel and the PA have been frozen since Jordan hosted a series of “exploratory meetings” between Erekat and Israeli negotiator Yitzchak Molcho. The PA refused to continue to talk after those meetings and Abbas continued to impose preconditions on negotiations.

The PA recently threatened to cancel all agreements signed after 2000 if Israel does not agree to their demands before peace talks.