Three people killed when their car plunged into a river after a crash worked together in an onion packing factory, it has emerged.
A man arrested in connection with the crash has been bailed
Two Portuguese men, driver Jose Marme-laria, 49, and Carlos De Olivira, 46, were living in Peterborough.
The name of a woman, who also died in the crash in Cambridgeshire on Wednesday, has yet to be released.
Another driver held on suspicion of dangerous driving at 40 Foot Bank near Ramsey has been released on bail.
He is a 31-year-old Kurdish man from Peterborough, and suffered slight injuries in the crash.
A 19-year-old Portuguese man managed to escape through a small section of the passenger side windscreen of the Hyundai, which went into the river.
He also suffered minor injuries and has been released from hospital.
A third vehicle - a Volvo lorry - is also believed to be involved in the collision.
The driver, a 36-year-old man from Peterborough, was uninjured.
The Vauxhall Cavalier driver was treated in hospital for minor injuries
Sergeant Steve Edwards, who is investigating the collision, said: "We would like to appeal to anyone who may have been travelling along 40 Foot Bank yesterday morning, who may have seen any of the vehicles involved.
"We need to build a clear picture of exactly what happened and would urge anyone with any information to contact us."
Those killed worked together in nearby Chatteris.
The accident happened at a notorious accident blackspot, between Ramsey 40 Foot and Chatteris, just off the B1049 in Cambridgeshire.
Last December, Dean Hawes, 27, from Chatteris and his son Jordan, 7, were killed when their car went into the water at nearby Ramsey 40 Foot.