A former member of the European Parliament and four people have been arrested in an investigation into suspected bribery by a gulf State .
Reports say, prosecutors suspect the country tried to influence parliament decision with donations of money or gift .
According to the reports, each worth about six hundred and thirty-two thousand dollars was seized by Belgian police in searches of sixteen Brussels location .
Police have not named the country in question, but unconfirmed local media reports have suggested it was Qatar.
A spokesperson for the Belgian Federal Prosecutor said in a statement, that investigators have suspected that a Gulf State had been influencing economic and political decision of the parliament for several month .