China Olympic swimming champion Sun jailed for seven days

China's Sun Yang celebrates after winning a gold medal at the FINA Swimming World Championships in Barcelona, Spain, (31 July 2013)

Chinese Olympic swimming champion Sun Yang has been sentenced to seven days in police detention for driving without a licence.

He was caught when a Porsche jeep he was driving in his hometown of Hangzhou collided with a bus on Sunday.

Sun won Olympic gold in the 400m and 1,500m freestyle events at London 2012.

In a statement, the swimmer apologised and said he had a poor knowledge of the law because he had been "focusing on training and competition".

Writing on Weibo, China's equivalent of Twitter, the 21-year-old athlete said he had failed as a role model, and he would reflect on his behaviour.

According to Chinese state media, Mr Sun claimed the jeep he was driving belonged to a relative.

The swimmer - China's first male Olympic swimming champion - has been in the news before for his exploits out of the pool.

Earlier this year he reportedly fell out with his coach over a relationship with an air hostess.

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