An organisation set up to target paramilitary funding has applied for court orders to freeze a number of bank accounts allegedly linked to the New IRA.
The PSNI and a special financial unit attached to the Metropolitan Police have applied for orders as part of an investigation linked to an MI5-led sting.
The joint investigation, which involves the National Terrorist Financial Investigation Unit (NTFIU), is understood to be linked to Operation Arbacia.
The NTFIU is a specialist department attached to the Metropolitan Police Service Counter Terrorism Command.
Earlier this year applications were made to Westminster Magistrates Court in London and Laganside Magistrates Court in Belfast to freeze a number of accounts.
It is understood that the applications were made under the Anti-Terrorism, Crime and Security Act 2001.
It is believed the accounts are held in a mixture of high street banks, online outlets and a credit union.
The length of the orders sought is for six months.
The Irish News understands that other accounts belonging to individuals across the north have also been frozen in recent months.
Ten people have been charged with a series of offences arising out of the surveillance operation connected to Operation Arbacia, including nine with directing terrorism.
The accused include husband and wife David and Sharon Jordan, Damien Joseph McLaughlin, Kevin Murphy, Amanda McCabe, Shea Reynolds, Joseph Barr, Gary Hayden and Paddy McDaid.
Palestinian doctor Issam Bassalat, who had been living in Edinburgh, is charged with addressing an IRA meeting.
All the accused deny the charges.
The arrests came amid claims that meetings involving senior members of the IRA were held at two houses in Co Tyrone, one close to Creggan in February and the second near Gortin in July, were recorded by listening devices and cameras.
It is understood the application to freeze the bank accounts included transcripts of recorded conversations alleged to have taken place at both of these meetings.
Some of the accounts are believed to be personal.
Last month the Irish News revealed that suspected MI5 agent Dennis McFadden has not been listed as a potential witness in the Operation Arbacia case.
The Glasgow native fled his north Belfast home just before details of last year's surveillance operation came to light.
It is believed he was responsible for renting the two properties allegedly used for last year's properties in Co Tyrone.
It is understood he is now in protective custody.
The PSNI and Met Police were contacted.
