The UK's Advertising Standards Authority (ASA) has warned William Hill to avoid using images featuring children in their future promotions after banning a series of Twitter adverts by the bookmaker which were found to be irresponsible as they were likely to be of particular appeal to children.

Three ads on Twitter attracted complaints from an individual who queried whether they were likely to be of particular appeal to children.

The first featured a child jumping in the air and holding a golf club to celebrate the start of the Masters golf tournament. Two other adverts promoted the birth of the royal baby, Princess Charlotte.

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