Former finance director of Anglo Irish Bank William McAteer has been arrested.
Mr McAteer was arrested at 8am at his home in Rathgar in Dublin by detectives from the Garda Bureau of Fraud Investigation.
He is being detained at Irishtown Garda Station and can be questioned for up to 24 hours.
It is the second time he has been arrested in connection with the ongoing investigation into alleged financial irregularities at the bank.
A number of files have already been sent to the DPP in connection with the overall investigation.
