A poster of deposed Egyptian President Mohamed Mursi lies on a bulldozer around Cairo University and Nahdet Misr Square, where members of the Muslim Brotherhood and supporters of Mursi were camping in Giza, south of Cairo August 14, 2013. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

Riot police gather behind an armoured vehicle during a clash with members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, at Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of deposed President Mohamed Mursi, his Muslim Brotherhood movement said. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) 

Riot police clear the area of members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, at Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of deposed Mursi, his Muslim Brotherhood movement said. REUTERS/Stringer (EGYPT - Tags: POLITICS CIVIL UNREST) 

Riot police officers walk during clashes with members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, at Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of Mursi, his Muslim Brotherhood movement said. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

A riot police officer assists a woman as they cleared the area of members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, at Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of Mursi, his Muslim Brotherhood movement said. REUTERS/Stringer (EGYPT - Tags: POLITICS CIVIL UNREST) 

Members of the Muslim Brotherhood and supporters of deposed Egyptian president Mohamed Mursi, lie face down on the ground with their hands secured behind them, after being detained by riot police at Rabaa Adawiya square, where they had been camping, in Cairo August 14, 2013. The death toll from a raid on Mursi supporters, in Cairo and other clashes nationwide has climbed to 149, the Health Ministry said on Wednesday. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

A riot police officer holds a copy of the Koran as they clear the area of members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, at Rabaa Adawiya square, where they were camping, in Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of Mursi, his Muslim Brotherhood movement said. REUTERS/Stringer (EGYPT - Tags: POLITICS CIVIL UNREST) 

Riot police vehicles fire tear gas at members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi, around Cairo University and Nahdet Misr Square, where they are camping in Giza, south of Cairo August 14, 2013. Egyptian security forces killed at least 30 people on Wednesday when they cleared a camp of Cairo protesters who were demanding the reinstatement of deposed President Mohamed Mursi, his Muslim Brotherhood movement said. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

Members of the Muslim Brotherhood and supporters of ousted Egyptian President Mohamed Mursi throw stones at riot police and army personnel during clashes around the area of Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. The death toll from an Egyptian police raid on supporters of deposed President Mohamed Mursi at a Cairo protest camp has climbed to 60 at one hospital, according to a nurse who said she counted the bodies. REUTERS/Asmaa Waguih (EGYPT - Tags: POLITICS CIVIL UNREST) 

Riot police and army soldiers protect themselves with riot shields as members of the Muslim Brotherhood and supporters of ousted Egyptian President Mohamed Mursi throw stones during clashes around the area of Rabaa Adawiya square, where they are camping, in Cairo August 14, 2013. The death toll from an Egyptian police raid on supporters of Mursi at a Cairo protest camp has climbed to 60 at one hospital, according to a nurse who said she counted the bodies. REUTERS/Asmaa Waguih (EGYPT - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) 

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATH
Supporters of deposed Egyptian President Mohamed Mursi carry a protester injured during clashes with riot police and the army in the area of Rabaa Adawiya square, where they have been camping, in Cairo August 14, 2013. At least 95 Egyptians were killed on Wednesday after security forces moved in on protesters demanding Mursi's reinstatement, and the government imposed a state of emergency as unrest swept the most populous Arab nation. REUTERS/Asmaa Waguih (EGYPT - Tags: POLITICS CIVIL UNREST) 

Members of the Muslim Brotherhood and supporters of ousted Egyptian President Mohamed Mursi flee from tear gas and rubber bullets fired by riot police during clashes, on a bridge leading to Rabba el Adwia Square where they are camping, in Cairo August 14, 2013. At least 95 Egyptians were killed on Wednesday after security forces moved in on protesters demanding the reinstatement of Mursi, and the government imposed a state of emergency as unrest swept the most populous Arab nation. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

A view of the debris after the clearing of a protest camp outside the burnt Rabaa Adawiya mosque in Cairo August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 421 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarised and in turmoil. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

A poster of deposed Egyptian President Mohamed Mursi that reads "Yes to legitimacy; no to the coup" lies amid the debris of a cleared protest camp outside the burnt Rabaa Adawiya mosque in Cairo August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 421 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarised and in turmoil. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

People gather outside a government building after it was set ablaze in Giza's district of Cairo, August 15, 2013. Hundreds of supporters of Egypt's Muslim Brotherhood stormed a government building in Cairo on Thursday and set it ablaze, as fury over a security crackdown on the Islamist movement that killed more than 500 people spilled on to the streets. REUTERS/Muhammad Hamed (EGYPT - Tags: POLITICS CIVIL UNREST) 

Suspects are rounded up near a burnt annex building of Rabaa Adawiya mosque after the clearing of a protest camp around the mosque, in Cairo August 15, 2013. Hundreds of supporters of Egypt's Muslim Brotherhood stormed the government building in Cairo on Thursday and set it ablaze, as fury over a security crackdown on the Islamist movement that killed hundreds of people spilled on to the streets. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

Members of the military police stand outside the burnt Rabaa Adawiya mosque, the morning after the clearing of a protest which was held around the mosque, in Cairo, August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 421 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarized and in turmoil. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST MILITARY) 

People walk inside the burnt Rabaa Adawiya mosque, the morning after the clearing of a protest which was held around the mosque, in Cairo, August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 421 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarized and in turmoil. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) 

A man sprays air freshener over the bodies of dead members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi at El Eyman mosque in Cairo August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 525 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarized and in turmoil. A Reuters witness counted 228 bodies, most of them wrapped in white shrouds, arranged in rows on the floor of the Imam mosque in northeast Cairo, close to the worst of Wednesday's violence between police and demonstrators. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) 

A man reacts after seeing the dead body of his brother, a Muslim Brotherhood supporter, at El Eyman mosque in Cairo August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 525 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarized and in turmoil. A Reuters witness counted 228 bodies, most of them wrapped in white shrouds, arranged in rows on the floor of the Imam mosque in northeast Cairo, close to the worst of Wednesday's violence between police and demonstrators. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATH

Members of the Muslim Brotherhood and supporters of deposed Egyptian President Mohamed Mursi carry the body of a comrade killed yesterday at the El Eyman mosque in Cairo, August 15, 2013. Egypt's Muslim Brotherhood called on followers to march in protest in Cairo on Thursday, after at least 525 people were killed in a security crackdown on the Islamist movement that has left the most populous Arab nation polarized and in turmoil. A Reuters witness counted 228 bodies, most of them wrapped in white shrouds, arranged in rows on the floor of the Imam mosque in northeast Cairo, close to the worst of Wednesday's violence between police and demonstrators. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS CIVIL UNREST) 

People reach for a coffin during a funeral for policemen killed during yesterday's clashes in Cairo August 15, 2013. More than 500 people were killed in violence on Wednesday which began when security forces broke up the Muslim Brotherhood's protest sit-ins in Cairo. REUTERS/Muhammad Hamed (EGYPT - Tags: POLITICS CIVIL UNREST) 

Egypt's Interior Minister Mohamed Ibrahim (C) gets into his car after attending the funerals of policemen killed during yesterday's clashes in Cairo, August 15, 2013. More than 500 people were killed in violence on Wednesday which began when security forces broke up the Muslim Brotherhood's protest sit-ins in Cairo. REUTERS/Muhammad Hamed (EGYPT - Tags: POLITICS CIVIL UNREST CRIME LAW) 

Government employees look out of a window during a funeral for policemen killed during yesterday's clashes in Cairo, August 15, 2013. More than 500 people were killed in violence on Wednesday which began when security forces broke up the Muslim Brotherhood's protest sit-ins in Cairo. REUTERS/Muhammad Hamed (EGYPT - Tags: POLITICS CIVIL UNREST)