Egypt is staggering under the latest unrest as the interim administration struggles to resolve the crisis.

The Muslim Brotherhood, which brought down the earlier regime under Hosni Mubarak, is at the receiving end this time around.

The protests started on the first anniversary of Mohamed Morsi's leadership and soon snowballed into a movement to remove the Islamist president.

Anti-Morsi rage which the Brotherhood had earned over a year through its Islamist-led policies, gave momentum to the rallies. Liberal and other opposition elements in the Arab world's most populous nation demonstrated their strength by hitting the streets.

Sensing the mood of the campaigners against Morsi, the army issued him an ultimatum.

Defying the calls, Morsi tried to ride the crisis through negotiations, but the military deposed him. The US, which gives military aid to Egypt, and the UN stopped short of calling the ouster a "coup" by the army.

Morsi's overthrow sparked clashes between the supporters and opponents of Morsi resulting in the loss of several lives.

Morsi's whereabouts are still unclear while he and scores of other Brotherhood leaders remain in custody.

The Egyptian army installed top judge Adli Mansour as the interim leader even as the country's leaders failed to arrive at a consensus over the appointment of a prime minister.

The protests took a new turn after the Egyptian army opened fire at Brotherhood supporters during early morning prayers in Cairo.

The Brotherhood accused the army of carrying out a "massacre" while the military said they responded to armed provocation of the protesters.

As the turmoil continues, Mansour has issued a decree stipulating presidential polls within six months of the transitional period and also appointed a committee to make changes to the Islamist-drafted Egyptian constitution.