The euro zone's top bank supervisor blamed a "mess" of diverging laws across the bloc on Tuesday for the European Central Bank's failure to stop Angolan billionaire Isabel dos Santos, who is suspected of fraud, from controlling a bank in Portugal.

"I'm not very happy to be honest, not about the performance -- our or Banco de Portugal's performance -- I'm nor very happy about the ... mess in the legislative set-up here," Andrea Enria told a news conference when asked about Dos Santos.
Dos Santos, the eldest child of Angola's former president Jose Eduardo dos Santos, has been named a formal suspect over allegations of mismanagement and misappropriation of funds during her time as chairwoman of state oil company Sonangol.