Complaints alleging that advertisements for two Sony PlayStation games were excessively violent have been upheld by the Advertising Standards Authority of Ireland.
In the first case, a poster and television advertisement for a PlayStation 2 game (Getaway Black Monday) featured pictures of London and a man holding a baseball bat.
This was accompanied by the phrase: "London's great if you like a bit of clubbin'. Fun, anyone?"
One complainant claimed the advertisement projected violence as "something fun to do", while another said the advertisement was "nasty".
The advertisers said the advertisement was meant to show the "underbelly of London's East End criminal world".
However, the authority said advertisements should contain nothing "that condones or is likely to provoke violence or anti-social behaviour".
The authority said it considered the advertisers' response but it still believed the advertisement contained references to violence.
In the second case, complainants contacted the authority about an advertisement depicting "porn stars attacking a group of golfers crossing a river".
Several complainants said they found it difficult to explain the content to their children and they drew attention to the fact that it aired during a rerun of The Late Late Show toy programme.
The authority added: "Other complainants felt that the content of the advertisement, showing as it does golfers being pushed to the ground and then straddled by porn stars, was totally inappropriate for advertisements for PlayStation and PlayStation 2, which are directed towards children and teenagers."
The advertisers said the advertisement was developed in London and it was meant to show that "disparate and unrelated groups in society can interact in the gaming world".