An Argentinian federal prosecutor has asked that former president Cristina Fernandez de Kirchner be investigated in a money laundering probe.
The state Telam agency reported on Saturday that Guillermo Marijuan made the formal request to Judge Sebastian Casanello, who is overseeing an investigation that involves a businessman with close ties to Ms Kirchner.
Under Argentinian law, such a request is the precursor to charges, which must be decided on by a judge.
Calls to Mr Casanello's office were not returned. Messages sent to Mr Marijuan and Ms Kirchner seeking confirmation were also not immediately returned.
Ms Kirchner, whose second term ended in December, has long been dogged by allegations of corruption. Earlier this week, businessman Lazaro Baez was arrested on charges that he laundered over five million US dollars. Mr Baez refused to testify and remains in jail.