Key facts
- Brazil's top court has unsealed an investigation into a multibillion-dollar bank fraud.
- Senator Flavio Bolsonaro is under investigation for alleged corruption and money laundering.
- The probe is linked to Banco Master.
Brazil's Superior Electoral Court has unsealed an investigation into a multibillion-dollar bank fraud scheme. The probe implicates officials and politicians, with Senator Flavio Bolsonaro now under scrutiny for alleged corruption and money laundering related to Banco Master.