Zainab, the first wife of Buba Marwa, chairman of the National Drug Law Enforcement Agency (NDLEA), is dead.
A statement by the family said Zainab died in the early hours of Saturday after a brief illness.
The nature of the illness was not made known.
Zainab Marwa, a native of Imo state, was 66 years old.
She left behind her four children and 10 grandchildren as well as her siblings and aged mother.
Throughout her life, she advocated for the advancement of women and the girl-child.
The family will announce a burial plan at a later date, according to the statement.