Gardai say they are investigating a suspected fraud at a credit union in north Dublin.
It is believed up to €400,000 is involved.
This alleged fraud happened at the Larkhill and District Credit Union in Whitehall between 2002 and 2013.
It is believed the credit union has had to refund thousands of euro to members after money was taken from members accounts without their knowledge and children's account were tampered with.
Loan repayments were also not debited from borrowings.
Gardai say officers in Santry are investigating financial irregularities at a north Dublin credit union, and their investigations are continuing.