Palestinian Prime Minister Ahmed Qureia wrote to world leaders on Sunday urging them to convene a conference to restart Middle East peace talks and offset what he called U.S. concessions to Israel.
Qureia accused the United States of breaking international law by making "concessions" in support of Israeli Prime Minister Ariel Sharon's plan to evacuate the Gaza Strip.
Palestinians reacted angrily when President George W. Bush said Israel could expect to keep chunks of the West Bank seized in the 1967 Middle East war under any final peace deal. He also ruled out a return for Palestinian refugees to the Jewish state.
"The U.S. and Israeli positions contravene international law, as well as past agreements between the parties to which the international community bore witness," he wrote.
"We ask...you to support the call for an international conference to approve the framework, the timetable and the principles to resume permanent status negotiations immediately."
Palestinian anger at the United States soared further after Israel's assassination of Abdel Aziz Rantisi, a top leader of the Hamas militant faction. Qureia made no mention of that in his letter.
Bush's statement and Rantisi's assassination were viewed by many Palestinian officials as a deadly blow to any resumption of negotiations, but Qureia wrote the leadership remained committed to peace talks.
Qureia's letter was sent to U.N. Secretary-General Kofi Annan as well as leaders of the European Union, Russia, China and Japan. Qureia planned to send a separate letter to Bush.