Ten men found in lorry container on M25
All have been arrested on suspicion of immigration offences
One was taken to hospital for treatment.
No further details regarding ages or nationalities was immediately available.
It comes after Irish police found 16 people in a sealed trailer on board a ferry on Thursday afternoon after staff heard noise coming from inside.
The passenger service arrived in Rosslare in County Wexford from Cherbourg in France.
An Essex Police spokeswoman said: “Police were called to reports of people inside a lorry container at around 6pm.
“Officers attended and found 10 men in the rear of the container.
“They have been arrested on suspicion of immigration offences. One was taken to hospital for medical treatment.
“The driver has been arrested. Inquiries continue.”