Fine Gael leader Enda Kenny has called on the Government to make moves to have the Colombia Three jailed in Ireland.
Niall Connolly, Martin McCauley and James Monaghan are in hiding in the country following eight months on the run from the Colombian authorities.
They were originally cleared and then convicted on appeal of training anti-government rebels in the South American country before being jailed for 17 years.
The absence of an extradition agreement between Ireland and Colombia means they are unlikely to be returned, but Mr Kenny said the Government should try to have them serve their sentences in Ireland under a European convention.
The SDLP, meanwhile, has called for a special Oireachtas committee to be set up to investigate the Colombia Three's return to Ireland.