Updated

A legal case brought by members of Nelson Mandela's family against several of his longtime associates has been delayed.

A law firm representing human rights advocate George Bizos, an associate of the former South African president, said Monday that a court will not hear the case this week as originally scheduled.

The Norton Rose Fulbright firm says in a statement that the court instructed daughters of Mandela to appoint new attorneys following the withdrawal of their lawyers from the case.

The daughters, Makaziwe Mandela and Zenani Dlamini, say Bizos and associates should not remain directors of two companies whose proceeds are supposed to benefit the Mandela family.

Nelson Mandela, 95, has been hospitalized since June 8. The government says his health has improved but he remains in critical condition.