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Large 'car bomb' explosion hits central Cairo Large 'car bomb' explosion hits central Cairo
(35 minutes later)
A car bomb has exploded outside the police headquarters in Egypt's capital, killing at least three people and wounding more than 30, officials say.A car bomb has exploded outside the police headquarters in Egypt's capital, killing at least three people and wounding more than 30, officials say.
The powerful blast was felt across Cairo and black smoke could be seen rising over the city centre.The powerful blast was felt across Cairo and black smoke could be seen rising over the city centre.
Gunfire was reportedly heard soon after the explosion.Gunfire was reportedly heard soon after the explosion.
The blast comes on the eve of the third anniversary of the 2011 uprising that led to the removal of the country's long-serving ruler Hosni Mubarak.The blast comes on the eve of the third anniversary of the 2011 uprising that led to the removal of the country's long-serving ruler Hosni Mubarak.
Correspondents say that the banned Muslim Brotherhood and its partners are planning protests after Friday prayers across the country. No group has said it was behind the bomb attack.
Officials said a booby-trapped car exploded outside Cairo's security directorate.
A large number of ambulances raced to the scene.
State television showed footage of extensive damage to the large concrete building.
The BBC's Orla Guerin, reporting from Cairo, says it is a very significant target and should have been one of the best protected buildings in the city.
The attack comes at a tense time, with security forces already on heightened alert ahead of the anniversary of the start of the uprising, she adds.
The banned Muslim Brotherhood and its partners are planning demonstrations after Friday prayers across the country.
They are the latest in a series of regular demonstrations against the overthrow in July of Islamist President Mohammed Morsi.They are the latest in a series of regular demonstrations against the overthrow in July of Islamist President Mohammed Morsi.
Brotherhood supporters are also angry about recent moves to introduce a new constitution.Brotherhood supporters are also angry about recent moves to introduce a new constitution.
No group has said it was behind the bomb attack. Send your pictures and videos to yourpics@bbc.co.uk or text them to 61124 (UK) or +44 7624 800 100 (International). If you have a large file you can upload here.
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