A Brazilian Judge has authorised the seizure of FAI chief John Delaney's passport as past of the investigation into the ticket touting scandal

He's one of 6 people included in the warrant - acting president of the Olympic Council of Ireland William O’Brien and OCI officials Linda O’Reilly, Dermot Henihan, Kevin Kilty and Stephen Martin were also listed.

No arrests have been made but the officials have agreed to go to police stations for questioning and all six are prohibited from leaving the country.

Police also took computers, mobile phones and what is believed to be a significant number of unused tickets that had been held in a safe.

Meanwhile, The Olympic Council of Ireland has put together a 'crisis management' team to investigate the Rio ticket scandal.

The three-man group will include Sarah Keane of Swim Ireland, Prof Ciaran O'Cathain of Athletics Ireland and Robert Norwood from the Snowsports Association.

A statement has been released by the OCI overnight following a marathon 5 hour meeting by its Executive Committee.

In it, the Olympic Council says it will hire an international accountancy firm to conduct an independent review of ticketing arrangements.

Its report will then be given to the judge chairing the State inquiry into the controversy.