Police raided South Korea’s football association on Thursday as part of an investigation into the appointment of the coach in charge during their dismal World Cup campaign. Officers conducted “search and seizure operations” at the Korea Football Association (KFA) headquarters, looking into allegations of “obstruction of business” in the recruitment of former coach Hong Myung-bo, a police spokesman said. The 57-year-old Hong resigned in June after South Korea were knocked out at the group stage of the 48-team showpiece in the United States, Mexico and Canada following a shock 1-0 defeat to South Africa. Seoul police said financial crimes investigators were “looking into whether there were charges of obstruction of business during the appointment of Hong Myung-bo”, a spokesman said. The police investigation surrounds the appointment of former South Korea head coach Hong Myung-bo.