A man arrested during an operation in the Irish Republic against alleged money laundering has been charged with membership of the Real IRA.
Cash was seized in Dublin and Cork
Don Bullman of Wilton, Cork, was one of three men arrested after 94,000 euros were found in a car in Dublin. The two others have been freed without charge.
A police officer told a Dublin court he believed the notes were part of an IRA money laundering operation.
The cash was in a box of washing powder in a Northern Ireland registered car.
Father-of-three Mr Bullman, 30, appeared at the Special Criminal Court in Dublin on Friday and was remanded in custody.
On Friday night, a man arrested in Cork earlier this week was released without charge.
Three men and a woman are still being questioned by Irish police after £2m - £60,000 of it in Northern Bank notes - was seized during raids in the Irish Republic.
Martin McGuinness said the arrests were not an embarrassment
The money is being tested to see if it is linked to the £26m Northern Bank raid in December.
On Friday, seventeen bags of sterling bank notes were removed from a house near Cork.
Garda Commissioner Noel Conroy told a news conference an additional £175,000 had been surrendered to police in Dublin on Thursday night.
He said police were still in the early stages of their investigation.
"We see a subversive element in the movement of this money," he said.
"We are following quite a number of lines as to where the money may have come from, and naturally enough, one of those relates to the Northern Bank robbery."
Sinn Fein MP Martin McGuinness denied that the ongoing arrests, charges and criminal investigation were a massive embarrassment to his party.
"Well I haven't really heard anything thus far that would change my assessment, but that does not mean that we won't reflect on events as they unfold in Dublin and Cork over the course of the coming days," he said.
"I want to hear the full facts, not the fiction, of what we are dealing with at the moment."
Meanwhile, a former Sinn Fein vice president, Phil Flynn, has resigned from an Irish government committee over his links with a company at the centre of the investigation.
He has also stepped down as chairman of the Bank of Scotland's Irish division.
Mr Flynn said he had done nothing wrong and had no involvement in laundering money for anyone.