A Louth man, jailed for 12 years in Lithuania for smuggling weapons to the Real IRA, is to appeal against his conviction, according to the Baltic news agency BNS.
Dundalk man Michael Campbell, 39, was arrested in Vilnius in January 2008 after an international surveillance operation involving MI5 and Lithuanian intelligence.
He was convicted in October on three counts: attempted smuggling, attempting to aid a terrorist organisation and illegal possession of weapons.
Campbell has repeatedly insisted he was framed by British and Lithuanian intelligence.
At his trial, evidence was given that he had been overheard talking about planting bombs in London.
Lithuanian prosecutors had asked the court to sentence Campbell to 16 years in jail, including his pre-trial detention.
The prosecutor said Campbell paid undercover agents €10,000 to buy weapons, including a sniper rifle, detonators, timers and high explosives, which could have been used against targets in Britain.
Campbell told the court he had travelled to Lithuania to buy weapons but said they were meant to be sold to criminals, not the Real IRA.