A Bulgarian prosecutor on Thursday filed corruption charges against former defence minister Nikolay Tsonev, accusing him of concluding contracts which cost the state millions of dollars.
According to the indictment, he is responsible for defence purchases at prices over-valued by 8 million leva (5.6 million dollars), dpa reported.
Tsonev served as defence minister in the Socialist government led by premier Sergey Stanishev, which was voted out in the elections of July 2009.
Bulgaria joined the European Union during Stanishev's term in office. But his government was plagued by corruption scandals, which have already led to several indictments.
Stanishev's labour and welfare minister Emiliya Maslarova, now a member of parliament, was indicted last week for embezzling 11 million leva.
One state prosecutor, Nikolay Kokinov, last week said that Stanishev himself was facing criminal charges over misplaced confidential documents, though none have been filed yet.
The conservative Prime Minister Boyko Borisov's GERB party won last year's elections by promising to combat corruption and crime, both of which are deeply rooted in Bulgaria.