Sutton has the second highest death and injury toll of teenagers on its roads compared with the rest of London, new figures have revealed.
The figures, from Transport for London, show 21 teenagers died, or were left badly injured, on borough roads last year.
Bromley topped the table with 22 casualties and Camden had only four.
The results show teenage casualities have also increased in Sutton compared with an overall drop across the capital.
Figures show there were 12 casualties in the borough in 2004 and 15 in 2007, compared with an overall 7 per cent fall of serious injuries across London.
The road authority admitted more needed to be done to reduce death on the streets.
Chris Lines, head of TfL’s London road safety unit, said: “London has seen yet another reduction in the number of teenage casualties, but the message still needs to be loud and clear – every day a teenager is killed or seriously injured on London roads.
“The overall number of casualties may have reduced, but one casualty is one too many.”
The new figures come as TfL launches a new publicity push on the issue aimed at teenagers.
A spokeswoman for the transport body said: “Young teenagers are seen as a vulnerable road user group.
“This is associated with their growing independence and the need for them to travel to school on their own before they have developed the skills to recognise the risks there are on the roads.
Overall, 367 teens were killed or seriously injured in London in 2008.
TfL has not revealed the proportions of how many died and how many were injured.
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