Egypt Islamist Leader Sharply Denounces Army Chief The Muslim Brotherhood's leader made an unusually harsh attack on Egypt's military chief on Thursday, saying his ouster of President Mohammed Morsi was worse than destroying the Kaaba, Islam's holiest shrine. The analogy appeared aimed at whipping up religious sentiments on the eve of mass rallies promoted by Gen. Abdel-Fattah el-Sissi as a show of support for planned action by the military and the police to stop "violence and terrorism" by Morsi's mainly Islamist supporters. Divisions between the two sides grew even more entrenched as the youth group behind the wave of protests that led to the July 3 military coup against Morsi threw its support behind the military, urging Egyptians to participate in Friday's demonstrations. "Whoever wants to genuinely complete the revolution must be out in the squares and in all the provinces," said Mahmoud Badr, spokesman for Tamarod, or Rebel in Arabic. El-Sissi's call for a massive turnout on the streets has widely been seen as a prelude to a crackdown on the Muslim Brotherhood and other Islamists who have been camped out for about a month to call for Morsi's return. Clashes have frequently erupted between the protesters and authorities and attacks by Islamic militants in the Sinai Peninsula have surged since his ouster. On Thursday, two border guards - an officer and a soldier - were killed and three others wounded when suspected militants fired rockets at their checkpoint in the Sinai town of Sheikh Zweid town, a stronghold of radical Islamists. Islamists also planned pro-Morsi rallies on Friday, raising fears of more street battles. Nearly 200 people have been killed in the latest wave of violence to roil Egypt since the February 2011 toppling of autocrat Hosni Mubarak amid a popular uprising. Egypt's highest security body, the National Defense Council, said authorities were committed to ensuring the safety of all peaceful protesters but warned that no tolerance would be shown to anyone who threatens security. It also pledged that authorities would stay within the law and respect human rights with any measures taken to end the "terrorizing of citizens and breaking the law." Brotherhood leader Mohammed Badie's statement comparing the coup and the hypothetical destruction of the Kaaba - the cube-shaped shrine in Mecca, Saudi Arabia, that is faced by Muslims worldwide in their daily prayers - takes to a new level the enmity between the camp of Islamists led by the Brotherhood and their opponents, including liberals, moderate Muslim and secular Egyptians and minority Christians. Badie, who has an arrest warrant against him for allegedly inciting violence, also called el-Sissi a "traitor" and urged him to repent. "I swear by God that what el-Sissi did in Egypt is more criminal than if he had carried an ax and demolished the holy Kaaba stone by stone," Badie said. Former Prime Minister Hesham Kandil broke his silence since Morsi's ouster, issuing a videotaped and written statement in which he came to the defense of his patron, portraying him as a patriot who tirelessly worked for Egypt's prosperity and independence. He also said Morsi had shown flexibility in the final days of his one-year rule, agreeing to a referendum on whether early presidential elections be held but only after parliamentary elections, which were due to be held later this year.