Head of the Political Bureau of the Hamas movement, Khaled Mashal, met on Monday with Egypt’s Security Chief, Murad Muwafi, and a number of Egyptian security leaders. Izzat Al Rishiq of Hamas’ Political Bureau told the Hamas affiliated Palestinian Information Center that Mashal and Muwafi held talks on the situation in Palestine, the region, and the Palestinian unity deal that will be signed this Wednesday in Cairo.

Dr. Mousa Abu Marzouq and Mohammad Nassr, both political leaders of Hamas, also attended the meetings.

Hamas delegates from Gaza and in exile arrived in Cairo on Sunday evening to hold meetings with Egyptian officials, and to attend the official ceremony of signing the Palestinian unity deal that was mediated by Egypt.

Fateh leaders, headed by president Mahmoud Abbas, will be attending the official ceremony. The deal will official be signed by Abbas and Mashal, marking an end to years of internal divisions.

Israel and the United States are threatening to boycott the Palestinian Authority, and indicated they would halt all sorts of cooperation with it.

Several U.S senators, mainly republicans, called for stopping U.S. and international aid to the Palestinian Authority of Mahmoud Abbas for signing a deal with the Hamas movement, dubbed as a terrorist group.