Egypt crisis: Deaths as Cairo violence resumes

The BBC's Jeremy Bowen said he had seen 11 bodies and many people badly injured near central Ramses Square.

Two days ago the protesters' camps were broken up, leaving at least 638 dead and triggering international condemnation.

At least 12 people have also been killed in protests outside Cairo.

Eight people were reportedly killed in Damietta, and four in Ismailia, Kazinform cites BBC News.

In the wake of Wednesday's violence, police have been authorised to use live ammunition in self-defence.

Hundreds of people gathered at a mosque in Ramses Square after the Muslim Brotherhood, which backs Mr Morsi, appealed to its supporters to demonstrate after Friday prayers in a "march of anger".

The demonstrations are taking place under the slogan "the people want to topple the coup" - referring to the military's removal of Mr Morsi on 3 July.

But the protests quickly became violent - according to our correspondent the trigger was when a police station came under fire.

He said he could hear tear gas being used and then live ammunition - long bursts of automatic fire.

From where he is standing - near a mosque not far from the square - he said he could see many casualties being brought in for help.

"Egypt is in a deepening, really serious crisis - I can't see how they can get out of it without a lot more violence and death," he said.

Security in the capital is tight, with many armoured personnel carriers on the streets.

Entrances to Tahrir Square, the focus of demonstrations that led to the toppling of President Hosni Mubarak in 2011, were also reported to have been blocked off by the army.

State TV said the military was deploying to protect "important and vital facilities".

Members of groups opposed to Mr Morsi - the National Salvation Front and Tamarod - are reported to have called for counter-demonstrations in response to the Muslim Brotherhood protests.

There have also been calls for people to protect their neighbourhoods and churches throughout the country.

Egypt's Coptic Christian community has been targeted by some Islamists who accuse the Church of backing the army's overthrow of Mr Morsi last month.

The Egyptian Initiative for Personal Rights, an NGO, says 25 churches, along with private homes and businesses belonging to Copts and other Christian denominations, were attacked on Wednesday and Thursday.

US Republican Senator John McCain told BBC Newsnight that the ousting of President Morsi had been a "coup" and President Obama should have cut off aid to Egypt as a result.

The US has been careful not to use the word coup as under US law this would mean stopping aid.

"I am confused that we would not enforce our own laws," he said.

"That sends a message of tolerance of brutality, of ineffective American leadership to the Muslim world, that the United States of America at least condones this kind of behaviour, which we cannot."

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