Mohammed Mohammed, Somali 1500m runner
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Ramadan during the Olympics

4 August 2012 Last updated at 15:39 BST

London 2012 is taking place during the Muslim holy month of Ramadan.

While most athletes have been excused the duty of fasting during the Games, they are still observing many of Ramadan's other rituals.

And London's Muslim communities have been opening their doors to them, as the BBC's Bill Hayton reports.