But Belgian press reports said the country concerned was Qatar, and named the former MEP as Italy's Pier-Antonio Panzeri, who served as a socialist in the parliament between 2004 and 2019.A source close to the case confirmed press reports that the investigation was into suspected attempts by Qatar to corrupt an Italian Socialist former MEP, who Belgian outlets Le Soir and Knack named as Panzeri.Corruption accusationsThe alleged bribery comes as World Cup host Qatar has made a major push to improve its image in the face of criticism over its record on worker protections and human rights.Interviewed by AFP on Monday, Visentini welcomed progress made by Qatar on worker rights, but insisted "pressure" needed to be maintained once the football tournament finishes.Migrant workers make up more than 2.5 million of Qatar's 2.9 million population and labour conditions have been strongly criticised -- particularly in the lead-up to the World Cup."