A Parliamentary safety group is urging London Mayor Boris Johnson to hold a safety summit following the spate of cyclists' deaths in the capital. There was "a need for urgent action", said the Parliamentary Advisory Council for Transport Safety.
Boris Johnson said he understood why people were becoming increasingly concerned about cycle safety in London. But London's Mayor said statistics showed that it was getting safer.
The unlicensed events unfolded on Saturday night at Clapham Common and Tooting Bec Common.
A 37 year old man who was taken to hospital after getting into difficulty in a stretch of water near Maidenhead has died.
Jonty Bravery, who is mentally ill, has been jailed for 15 years after throwing a six year old boy from the Tate modern balcony.