It's now understood that the 39 people found dead in a lorry in Essex yesterday were Chinese.
However, Police are still working to formally identify them.
Meanwhile, Gardaí are investigating the movements of a truck where the bodies were discovered.
The vehicle is owned by a woman from Northern Ireland.
We can confirm that we have secured a warrant of further detention for a 25-year-old man being held on suspicion of murder.
The man, a lorry driver, was arrested in #Grays and will now remain in custody for up to an additional 24 hours.
Read more: https://t.co/xV0eScfksL pic.twitter.com/eweH5J5w7y— Essex Police (@EssexPoliceUK) October 24, 2019
Essex police have been given another 24 hours to question the driver of the lorry.
The 25-year-old from Northern Ireland is being held on suspicion of murder.
Deputy Chief Constable Pippa Mills said: “We continue to ask journalists and those on social media not to speculate about the identity of the lorry driver.