The court indicted Zia’s oldest son Tarique Rahman in absentia on Monday.

Rahman traveled to London for medical treatment in 2008 and refused to return home to attend the court hearing.

Prosecutors say Rahman and a friend smuggled $2.73 million to Singapore after receiving it in bribes from a company while his mother was prime minister.

In June, Zia’s younger son was sentenced to six years in jail on charges of laundering money from bribes.

Zia’s opposition party has denied all charges against the sons, saying they are aimed at destroying her family’s reputation.