Two women sentenced at Belfast Crown Court for killing Derry pensioner Daniel Guyler
He is wanted to stand trial in relation to serious sexual offences committed against a child.
The man was detained by virtue of an international warrant by officers from the International Policing Unit in Limavady this morning, Wednesdy, November 8.
He will be brought before an extradition court in Belfast this afternoon.
Sergeant Davey from the International Policing Unit said: “This morning’s arrest is another great example of the continued co-operation between An Garda Síochána and the Police Service of Northern Ireland’s International Policing Unit.
“The Police Service will continue to work with our partners and bring offenders before the courts.
“Our message is clear that there is nowhere to hide in Northern Ireland and that we will actively pursue all wanted persons believed to be in this jurisdiction.”