Seven male immigrants were discovered in a trailer at Rosslare Europort in Co Wexford this morning.
Gardaí said they are investigating possible immigration offences in connection with the discovery.
The seven males are currently in Wexford Garda Station receiving medical attention.
The discovery was made at around 5.55am after a truck arrived at the port.
The trailer has been detained by gardaí for a technical examination.
Last January, 14 people were found hidden in a refrigerated trailer at the Europort.
Nine men, three women and two young girls were found when the vehicle was stopped and searched after arriving on a ferry.
