POLICE arrested five suspected illegal immigrants found in the back of a HGV trailer at Normanton Industrial Estate near Wakefield.
Officers also arrested the 54-year-old Portuguese lorry driver during the incident on Foxbridge Way at around 3pm on Monday.
A member staff at a company which operates at the trading estate alerted police to report hearing banging noises that appeared to be coming from inside a heavy goods vehicle trailer.
Police attended and opened the trailer, where they found five men.
A spokesman for Wakefield Police said: “The males were arrested on suspicion of entering the UK illegally and taken to Normanton Havertop Police Station.
“The driver of the lorry was also arrested on suspicion of facilitating entry to the UK and his lorry was seized by UK Border Agency staff to allow for a forensic examination.”
The police spokesman added: “The UK Border Agency will continue with the investigation.”
All six men were handed to Home Office immigration enforcement officers and their cases are being dealt with.
A Home Office spokesman said: “We work closely with the police to tackle illegal immigration and continue to strengthen the security of our border to stop those who have no right to enter the UK.
“If people have a genuine need of protection they should claim asylum in the first safe country they reach.
“If they are just seeking to evade immigration control they need to know that they are risking their lives and that they will get caught. The new Immigration Act makes it harder for people to live in the UK illegally. It makes it harder for illegal immigrants to abuse our benefits and public services, and makes it easier for us to remove them by reducing the number of appeals.”