FIFA on Wednesday opened disciplinary proceedings against six referees and match officials amid an investigation into match-fixing in two international friendlies. World football's governing body were alerted to unusual betting patterns on two games - Bolivia versus Latvia and Estonia against Bulgaria - which were both held at Antalya, Turkey last month. FIFA said in a statement: "FIFA has opened disciplinary proceedings against six match officials in relation to the international A friendly matches Bolivia v Latvia and Estonia v Bulgaria played in Antalya (Turkey) on 9 February 2011. "The proceedings were opened following an evaluation of all documentation and information received by FIFA, in relation to a possible match-fixing situation in these matches. "The FIFA Disciplinary Committee will be in charge to deal with the matter." Both matches were organised by a Thai company that holds rights to organise matches and they were refereed by three Hungarians who do not feature on the official list of FIFA's international referees. Estonia drew 2-2 against Bulgaria and Bolivia beat Latvia 2-1. All seven goals were scored through penalties, which lead to suspicions of match-fixing. FIFA have demanded a detailed report on the matches from both the Bulgarian and Estonian football federations.