The Olympic Park in Stratford has closed to visitors as the site is prepared for the start of the Games in a few weeks.
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You can help keep an eye out for the capital's worst potholes by reporting them on an interactive map.
The painting, entitled 'Beautiful Beautiful George Michael Love Painting', was auctioned to help raise funds for HIV and Aids prevention.
The 38-year-old victim was standing on a busy Victoria Line train when another passenger approached him.