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August 2011, and some of England's biggest cities see four days of violence and looting.
They were scenes that hadn't been seen for a long, long time - and shocked people around the country.
Now, with the cities much calmer, the question is - why did this happen?
Sonali looks into just what happened and what might have caused them, as she goes 'Behind the Riots'.
What caused the Tottenham riots?
What's behind the worst violence in the north London area of Tottenham in more than 25 years?
Who was rioting and why?
Violence and vandalism spread through parts of London and other cities across England at the beginning of August. Who was involved, why did it happen, and what's being done about it?
Police dog gets bravery award
Obi, a police dog injured during the London riots in August has won a special Animal Bravery Award.
Aftermath of violence in England
Pictures of the aftermath after four nights of violence across England.
Broom brigades clean up vandals' mess
There were more brooms in Clapham, south London, than at Hogwarts as crowds of volunteers helped to clear the mess left by the vandals.
Sonali meets kids affected by the riots
Sonali meets kids affected by the riots in Ealing, west London and meets those who are helping to clean up the mess that's been left behind
Watch Newsround
Watch the latest update from Newsround, CBBC's news programme for children.
All about our Inventions Competition
Dick and Dom have teamed up with Newsround to launch an exciting inventions competition. We want kids to dream up inventions that solve everyday problems.
Video: Piglet has been adopted by a cat
A piglet has been adopted by a cat after its mum rejected him.
David Beckham's career in pictures
David Beckham joins Paris St-Germain until June 2013, before retiring from footie - Newsround looks at the former England captain's career in pictures.
New Game: Play our new Reporter Rush game
Send your reporters to the news in time with Newsround's new game Reporter Rush
New Game: Grab the controls and try Master Control Room
Be a live Newsround editor for the week with our new game Master Control Room
Video: The week's weirdest online clips
Newsround takes a look at the top three weirdest news stories of the week.
Quiz: The week's news headlines
How much can you remember about the past week's biggest news stories? Find out with Newsround's Quiz of the Week!
Watch Newsround's special programmes
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