Brazilian authorities have opened criminal investigations against former left-wing leaders Lula da Silva and Dilma Rousseff on charges of accepting alleged bribes from money transferred from the state oil giant Petrobras.
The Labor Party, which belongs to the two former presidents, dismissed the accusation as "scandalous maneuvering" with partisan motives.
Prosecutor Rodrigo Janot last year filed a lawsuit alleging that the defendants conspired to form a criminal organisation that received $390 million from bribes and money transferred from the state.
The federal court accepted the suit on Friday and asked the defendants to file their case within 15 days.
This is the first criminal charge against Rousseff, who took office in 2010 and was re-elected in 2014 before being isolated in 2016 on alleged public account manipulation.
Lula is currently serving a 12-year sentence for accepting a sea-view apartment as bribery during his 2003- 2010 presidency.