U.S. President Barack Obama expressed deep concern about the Egyptian military's removal of President Mohamed Morsi on Wednesday but stopped short of condemning a move that could lead to a cut-off in U.S. aid.

Judge Adly Mahmoud Mansour, 67, head of Egypt's High Constitutional Court (HCC) – who is now Egypt's transitional president after former Muslim Brotherhood president Mohamed Morsi was ousted after mass protests this week – was appointed head of the HCC last July after former head Judge Maher El-Beheiry's term had ended.

The Egyptian presidency responded on Tuesday to the army’s Monday statement, saying that it had not been reviewed by President Mohamed Morsi.

Egypt's armed forces would suspend the constitution and dissolve an Islamist-dominated parliament under a draft political roadmap to be pursued if Islamist President Mohamed Morsi and his opponents fail to reach a power-sharing agreement by Wednesday, military sources said.

Sixteen were killed and 781 injured after clashes in governorates across the country since demonstrations began Sunday, according to the Ministry of Health.

Egyptian President Mohamed Mursi met the head of the armed forces on Tuesday for the second day, along with the prime minister, the president's office said in a statement.

Egypt's Sports Minister El-Amry Farouk has stepped down on Tuesday, a source close to the minister told Ahram's Arabic-language sports website.

Egyptian opposition groups chose leading dissident Mohamed ElBaradei to represent them in negotiations on the country's future, after the army said it would intervene with a roadmap if political forces do not resolve the crisis by tomorrow.

Thousands of protesters cheered and sang the national anthem Monday as at least five army helicopters flew across Cairo while flying the Egyptian flag, dpa reported.

Egypt's powerful armed forces issued a virtual ultimatum to Islamist president Mohammed Morsi on Monday, calling on the nation's feuding politicians to agree on an inclusive roadmap for the country's future within 48 hours.

Crude-oil futures advanced Monday along with broader markets, after stronger U.S. economic data and escalating protests in Egypt.

Cairo, July 1: At least 16 people were killed and hundreds injured in clashes across Egypt as angry protesters took to the streets for the second day today, storming the headquarters ruling Muslim Brotherhood and giving an ultimatum to beleaguered President Mohamed Morsi to quit by tomorrow.

Al-Jamaa Al-Islamiya spokesperson Mohamed Hassan has denied that armed men arrested on the Cairo-Alexandria desert road on Sunday at noon are members of the party.

Amid unprecedented protests, the presidency addressed the nation through a televised press conference on Sunday. Presidential spokesperson Ehab Fahmy said in the conference that although peaceful protests are a right guaranteed by the constitution, acts of violence are unjustified. Fahmy added that the protection of peaceful protesters was the responsibility of the government.

In a joint statement released on Saturday, 21 human rights institutions pledged to monitor acts of violence on 30 June protests, launching a campaign “to support and protect peaceful demonstrations.’”

The Egyptian presidency has asserted that the only way to get out of the current political crisis is through dialogue, calling on all parties to commit to peaceful protest as hundreds of thousands stage demonstrations in rival protests across the country.

Egyptian Prime Minister Hesham Qandil will not be dismissed from his post, presidential spokesperson Ehab Fahmy said Sunday, despite growing rumours President Mohamed Morsy was considering a governmental re-shuffle amid 30 June protests.

The main opposition coalition group, the National Salvation Front, has issued a “revolutionary statement" to comment on ongoing mass rallies against Egyptian President Mohamed Morsi's rule.

Egypt faces a showdown in the streets after President Mohamed Mursi failed, in an address to the nation, to satisfy the demands of opponents who want the Islamist to step down after a year in office.

Egypt's Islamist president told his opponents to use elections not protests to try to change the government and said the military should focus on its role as the nation's defenders in a nationally televised address on Wednesday, days before the opposition plans massive street rallies aimed at removing him from office.

The constitution fully supports the Tamarod movement’s signature campaign, according to the head lawyer of Tamarod’s justice committee.