Brussels, March 31 (Reuters): Belgian trainers helping police to understand body language have caused a row by likening George Bush?s facial expressions to a chimpanzee?s.

Interior minister Patrick Dewael said he was unaware of the pictures when he signed a letter promoting the training package for police dealing with unruly soccer fans, and said the idea was ?of bad taste?, Het Laatste Nieuws daily reported.

The training presentation pictured the President?s face in various expressions beside photographs of a chimpanzee, the paper showed on its front page, in what was meant to be a humourous introduction to the subject of reading expressions.

PM surgery

Belgian Prime Minister Guy Verhofstadt underwent heart surgery after suffering chest pains, the surgeon who oversaw the operation said.