Fall out from the Panama Papers release continues, as the BBC reveals that Mossack Fonseca were unable to identify 70% of the owners it administered.

Mossack Fonseca had tried to close gaps in its record keeping to alert beneficiaries of 70% of the companies it administered in the British Virgin Islands, and 75% of the companies in Panama.

Emails obtained show the clients of the firm were using offshore structures to maintain confidentiality.

An intermediary wrote: "… the names of our customers have been known by the authorities of their countries. Thanks to Mossack, customers have to pay incomes taxes."