"These events have taken us back several steps," he said. "Instead of moving forward to build a modern state on democratic principles we are back to seeking stability and searching for hidden hands — domestic and foreign — that meddle with the country's security and safety."
"I call on Egyptian people, Muslims and Christians, women and children, young men and elders to hold their unity," Sharaf said.
The Christian protesters said their demonstration began as a peaceful attempt to sit in at the television building. But then, they said, they came under attack by thugs in plainclothes who rained stones down on them and fired pellets.
"The protest was peaceful. We wanted to hold a sit-in, as usual," said Essam Khalili, a protester wearing a white shirt with a cross on it. "Thugs attacked us and a military vehicle jumped over a sidewalk and ran over at least 10 people. I saw them."
Wael Roufail, another protester, corroborated the account. "I saw the vehicle running over the protesters. Then they opened fired at us," he said.
Khalili said protesters set fire to army vehicles when they saw them hitting the protesters.
Ahmed Yahia, a Muslim resident who lives near the TV building, said he saw the military vehicle plow into protesters. "I saw a man's head split into two halves and a second body flattened when the armored vehicle ran over it. When some Muslims saw the blood they joined the Christians against the army," he said.
Television footage showed the military vehicle slamming into the crowd. Coptic protesters were shown attacking a soldier, while a priest tried to protect him. One soldier collapsed in tears as ambulances rushed to the scene to take away the injured.
At least 24 people were killed in the clashes, Health Ministry official Hisham Sheiha said on state TV.