to death, their employers said, while the Egyptian Press Syndicate, a journalists' union, said it had no information on how Gawad was killed.
For much of the afternoon, thousands of Morsi supporters chanting "God is great!" tried to join those besieged by the security forces inside the Nasr City camp. They were driven away when police fired tear gas.
Smoke clogged the sky above Cairo and fires smoldered on the streets, which were lined with charred poles and tarps after several tents were burned.
The Great Pyramids just west of Cairo were closed to visitors for the day together with the Egyptian museum in the heart of the city. The Central Bank instructed commercial banks to close branches in areas affected by the chaos.
"Egypt has never witnessed such genocide," Brotherhood spokesman Ahmed Aref told The Associated Press from the larger of the two protest camps before it was cleared.
The pro-Morsi Anti-Coup alliance alleged security forces used live ammunition, but the Interior Ministry, which is in charge of the police, said its forces only used tear gas and that they came under fire from the camp.
Police dismantled the main stage near the mosque in the eastern Cairo district of Nasr City, the official MENA news agency said. An AP reporter saw hundreds of protesters leaving the sit-in site carrying their personal belongings.
"I already wrote my will and gave my wife the number of my bank account and told her who owes us money and who we owe money to," said 28-year-old chemist Ahmed Shaker during a brief break in fighting with security forces at the Nasr City camp.
"If I have to die, I will die," said the father of one child carrying several bottles of beer he said he intended to use as firebombs.
Security officials said train services between northern and southern Egypt were suspended to prevent Morsi supporters from traveling to Cairo. Clashes erupted on two roads in the capital's upscale Mohandiseen district when Morsi supporters opened fire on passing cars and pedestrians. Police used tear gas to chase them away.
The security officials spoke on condition of anonymity because they were not authorized to talk to media.
The government declared a monthlong nationwide state of emergency and imposed a nighttime curfew on Cairo, Alexandria on the Mediterranean and 12 other provinces where violence broke out following the simultaneous raids.
It also ordered the armed forces to support the police in restoring law and order and protect state facilities. Egypt was under emergency law for most of Mubarak's 29 years in power.
Despite the curfew, sporadic clashes continued in Cairo through the evening.
In the city of Assiut, south of Cairo, a police station was hit by two mortar shells Wednesday night fired by suspected Morsi supporters, according to officers there who spoke on condition of anonymity because they were not authorized to talk to reporters.
Anger over Morsi's ouster already has led to an increase in Islamic militant violence in the northern half of the Sinai Peninsula that borders Israel and Gaza, and many fear growing anger over the crackdown and deaths of civilians could be exploited by extremists.
The turmoil was the latest chapter in a bitter standoff between Morsi's supporters and the interim leadership that took over the Arab world's most populous country. The military ousted Morsi after millions of Egyptians massed in the streets at the end of June to call for him to step down, accusing him of giving the Brotherhood undue influence and failing to implement vital reforms or bolster the ailing economy.
Several senior leaders of the Brotherhood who were wanted by police were detained after the camps were stormed, according to security officials and state television. Among those seized were Brotherhood leaders Mohammed el-Beltagy and Essam el-Erian, and hard-line cleric Safwat Hegazy -- all wanted by prosecutors to answer allegations of inciting violence and conspiring to kill anti-Morsi protesters.
Morsi himself has been held at an undisclosed location. Other Brotherhood leaders have been charged with inciting violence or conspiring in the killing of protesters.
A security official said 200 protesters were arrested at both camps. Several men could be seen walking with their hands up as they were led away by black-clad police.
Islam Tawfiq, a Brotherhood member at the Nasr City sit-in, said the camp's medical center was filled with dead and that the injured included children.
"No one can leave and those who do are either arrested or beaten up," he told AP.
The Muslim Brotherhood's political arm claimed that more than 500 protesters were killed and some 9,000 wounded in the two camps, but those figures could not be confirmed and nothing in the video from AP or local TV networks suggested such a high death toll.