A 29-year-old man has been arrested following an investigation into the advertising of people smuggling services on social media.
The National Crime Agency (NCA) said the Indian national was detained at an address in the Handsworth area of Birmingham on Monday.
It said he is suspected of working for an organised crime network moving people in the backs of lorries.
The man was arrested on suspicion of facilitating illegal immigration and remains in custody, being questioned by the NCA and West Midlands Police.