Security forces in riot gear outside the mosque
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Egypt crisis: Security forces try to end mosque stand-off

17 August 2013 Last updated at 08:13 BST

Egyptian security forces are trying to end a siege at a Cairo mosque where hundreds of Muslim Brotherhood supporters spent the night barricaded.

Hundreds of people are believed to be inside the al-Fath building.

The BBC's Bethany Bell said pictures show people inside the mosque building a make-shift barricade.