A man is to be brought before the High Court in Dublin later charged in relation to the discovery of 39 bodies in a container in Essex, England last year.
The man, aged in his 40s from Co Armagh, was arrested on Monday following a European Arrest Warrant.
He has been charged with 39 offences of manslaughter, as well as immigration charges.
Some 39 Viatnamese nationals were found dead in the back of a lorry in an industrial estate in Essex last October.
Another man from Northern Ireland, Maurice Robinson, has previously pleaded guilty to 39 counts of manslaughter in relation to the case.
Robinson (25) from Craigavon appeared virtually at the Old Bailey in London on April 8th.
He also previously pleaded guilty to conspiracy to assist unlawful immigration and acquiring criminal property.
Mr Robinson is to be sentenced at a later date.