The drummers who disrupted Helen Mirren's performance on Saturday at the Gielgud Theatre have said they had permission from Westminster Council to perform in the street.
The Batala London group was performing in Soho to promote a festival in East London, before they were cut short by Dame Helen's intervention.
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The 78-year-old woman suffered serious injuries after her bag became trapped between the doors of a train at Notting Hill Gate station.
The oil has affected wildlife and boat owners have been told not to move their vessels to avoid spreading it.
Fearing for public safety, PC Chegwin pushed her in the chest in a defensive manner, not knowing she had extensive breast surgery.