The former Argentinian president Cristina Fernández de Kirchner was indicted on Tuesday in a corruption case involving public works.

Federal judge Julian Ercolini approved charges of illicit association and fraudulent administration against Fernández, and two former aides: ex-planning minister Julio de Vido and former public works secretary José López.

Also named was businessman Lázaro Báez, whose Austral Construcciones company allegedly benefited from irregular contracts.

The judge’s order froze the equivalent of up to $633m of each defendant’s assets, though it was not clear they have that much.

The ruling published by official Center of Judicial Information said the defendants are accused of associating to illegally take public funds meant for public works between May 2003 and December 2015.

Fernández made no immediate comment on the charge, but she has repeatedly denied wrongdoing.

Since leaving office in December 2015, Fernández has alleged that she is the victim of persecution by her conservative successor, Mauricio Macri.

In May, a judge indicted Fernández on charges of manipulating currency exchange futures markets, allegedly causing economic damage to the government.

A judge is also seeking to revive an investigation into Fernández over an alleged cover-up on behalf of Iranians suspected in the 1994 bombing of the Argentinian Israelite Mutual Association, which caused its main building to collapse and killed 85 people.

No one has been convicted of the crime but in January 2015, an Argentinian federal prosecutor accused Fernández of attempting to cover up Iran’s involvement.

The prosecutor, Alberto Nisman, was found shot in the head just before he was to present the case to congress. His death remains unsolved.

With reporting by Amanda Holpuch