Police, along with other emergency services, swiftly responded to the situation after receiving reports of individuals discovered in the back of a lorry.
The discovery took place at approximately 10:40 a.m. on Thursday, 25th May, on the Ransomes Industrial Estate, Ipswich.
The arrested people are being questioned by Home Office Immigration Enforcement, while the driver of the lorry is also undergoing interrogation on suspicion of Immigration Act offences.
All three arrested individuals have been taken to the Martlesham Police Investigation Centre for further inquiries.
According to eyewitnesses, there was a notable presence of emergency services in the area, suggesting the seriousness of the incident. However, the specific details regarding the incident have not been revealed yet due to ongoing investigations.