Amando Yanez, who was initially arrested in June and detained last week, is embroiled in a fraud scandal that allegedly cost Citigroup Inc hundreds of millions of dollars.

Reuters cited a statement from judicial authorities saying Yanez should remain in custody due to his “probable criminal responsibility” for supplying false information to Citigroup to obtain credit.

In February, the Mexican government took over control of the scandal-hit company and launched an investigation.

Citigroup