KHAN YUNES (AFP) - The Palestinian group Islamic Jihad on Saturday threatened to unleash "the fires of hell" on Israel, as it staged a military parade in the south of the Islamist-ruled Gaza Strip. "We will unleash the fires of hell if the Zionist enemy continues its crimes," said the group's military chief Abu Hamzeh after the parade by around 800 Islamic Jihad members, an AFP journalist reported. "We're getting ready for the next round," he added, saying "the Zionist enemy will have neither peace nor security while it occupies our land." Abu Hamzeh said his group had "hundreds of rockets" ready to launch at southern Israel. Khader Habib, a political leader in the group, said Islamic Jihad "will not rest until we have liberated all of Palestine," referring to the movement's aim to create a Palestinian state in Israel's place. Earlier the fighters staged exercises using assault rifles rocket-propelled grenades and machine guns. The parade took place on the site of the former Jewish settlement of Gush Katif, which was evacuated when Israel withdrew settlers and forces from the Gaza Strip in August 2005. Meanwhile, Egyptian Foreign Minister Ahmed Abul Gheit said an Arab force for the Gaza Strip could help end violence in the impoverished territory, the official news agency MENA reported on Saturday. However the Minister, in a magazine interview to appear on Sunday (today), stopped short of making a direct appeal for the deployment of such a force in the Hamas-controlled Gaza Strip. "The presence of an Arab force in the territory could help stop violence and end the Israeli-Palestinian conflict," he said in the interview, excerpts of which were published by MENA. Abul Gheit said the idea warrants careful study "and deserves to be taken seriously." He stressed that his suggestion cannot take form until Palestinian unity is restored and "after an appropriate study is carried out." He stressed that Egypt and the Arab League "could play a role in this matter." Hamas and Egypt temporarily opened the Rafah crossing to Gaza on Saturday for the first time in weeks, allowing some 2,000 Gazans to cross into Egypt or to return to the Gaza Strip. Meanwhile, Palestinian police raided two mosques linked to the Hamas movement in the West Bank, seizing weapons caches and arresting more than 10 people, an official said on Saturday. Security forces loyal to President Mahmud Abbas raided the two village mosques Friday night, seizing Hamas pamphlets and weapons, Nidal Abu Sneini, the director of intelligence services in the nearby town of Hebron, told reporters. He said more than 10 people had been arrested but would not give the exact number. Doctors in the Gaza Strip went on strike Saturday to protest the sacking of some 50 doctors and other health workers by the Hamas-run Health Ministry, saying the decision was politically motivated. "Today we have begun a total strike in the government-run health sector in the Gaza Strip and there is good participation, with 70 per cent taking part," an official in the health workers' union told AFP on condition of anonymity. The official said emergency services providers and health workers loyal to the Islamist Hamas movement which has ruled Gaza since June 2007 were not taking part in the strike. The doctors are protesting the firing of 46 doctors and administrators linked to the Fatah movement of President Abbas, which was largely driven from Gaza when Hamas seized power. Hamas downplayed the strike, saying the number participating was "very limited" and claimed the doctors strike and a teachers strike held last week were both politically motivated. "(The strikes) follow calls issued by Fatah-run unions in Ramallah," Hamas spokesman Sami Abu Zuhri said, referring to the headquarters of Abbas' Palestinian Authority in the Israeli-occupied West Bank.