Three people arrested over deaths of the 39 people whose bodies were found in a lorry container have been released on bail.
A 38-year-old man and a 38-year-old woman from Warrington were arrested in Cheshire on Friday, while a 46-year-old man from Northern Ireland was arrested at Stansted Airport later the same day.
All three had been questioned on suspicion of manslaughter and conspiracy to traffic people, Essex Police said.
The man and woman from Warrington have both been released on bail until 11 November while the man from Northern Ireland has been bailed until 13 November.
It comes after 25-year-old Maurice Robinson from Northern Ireland was charged with 39 counts of manslaughter, conspiracy to traffic people, conspiracy to assist unlawful immigration, and money laundering.
He is due to appear at Chelmsford Magistrates' Court tomorrow.