The National Accountability Bureau's (NAB) executive board on Wednesday approved the filing of another corruption reference against former president Asif Ali Zardari and others.

According to the accountability watchdog, Zardari and other accused face charges of corruption through fake bank accounts and embezzlement in the financial facility for Park Lane Private Limited and Parthenon (Pvt) Limited.

NAB alleged that the national exchequer suffered a loss of Rs3.77 billion because of the irregularities.

Read more: Zardari’s role in eight out of 36 cases established, claims NAB

The NAB executive board in today's meeting also approved references against PPP's Senator Usman Saifullah and his family members, former director general of the Sindh Building Control Authority Manzoor Qadir, Peshawar Development Authority Chief Security Officer Syed Khalid Amin Shah and others.

Former president Zardari is already in NAB's custody on physical remand. The accountability watchdog had arrested him in June after the cancellation of his pre-arrest bail by the Islamabad High Court in the fake bank accounts case.

A day after his arrest in the fake accounts reference on June 10, accountability court judge Mohammad Arshad Malik had granted NAB physical remand of the former president.