Five puppies and five dogs have been seized today at Dublin Port.
Revenue Officers seized the animals after stopping two men who were getting off of a ferry from Holyhead.
The men, who were both Irish and in their 50s, were driving a van and pulling a horsebox with the animals inside.
The men did not have pet passports for the puppies and dogs.
A follow up investigation is now in progress.
The Pomeranian and Spaniel type dogs are in the care of the DSPCA.