Police are questioning a 17 year old about malicious tweets sent to Tom Daley.

The Team GB diver received abusive messages after he failed to win a medal at his Olympic event yesterday.

The teenager was arrested in Weymouth.

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Meanwhile, people in China have been reacting with fury on social networking sites after one of their swimmers was accused of cheating at London 2012.

16-year old Ye Shiwen denies the doping allegations and says her results come from hard work and training.