Angolan courts have not taken any action to have billionaire ex-first daughter Isabel Dos Santos' assets seized abroad but "will not hesitate to resort to such mechanisms if necessary", a prosecution spokesman told Reuters.

The asset freeze pertaining to Isabel dos Santos, her husband Sindika Dokolo and associate Mario da Silva will not be treated as a corruption allegation because it is a civil matter related to debts owned to the state, spokesman Alvaro Joao said.