Pham Thi Tra My and Nguyen Dinh Luong’s families are concerned they may be among the victims
Eight suspects have been held in Vietnam after 39 people were found dead in a lorry in Essex.
The arrests came as a team of Vietnamese officials arrived in Britain to help formally identify the 31 men and eight women.
The suspects are being held in relation to people smuggling offences, the director of police in the Nghe An province in north-central Vietnam said.
Two people were arrested in the Ha Tinh province of Vietnam last week.
The victims were discovered in a refrigerated lorry trailer on an industrial estate in Grays on 23 October.
On Friday, Essex Police said all 39 people were believed to be Vietnamese.
The force initially said it believed they were Chinese.
Image copyright
PA Media
A service was held for the victims in east London on Saturday evening
Essex Police said it was now in “direct contact with a number of families in Vietnam and the UK” and the Vietnamese Government.
A spokeswoman for the country’s Ministry of Foreign Affairs called the incident a “serious humanitarian tragedy”.
Post-mortem examinations are being carried out on the victims to establish the cause of their deaths.
More than 100 people attended a service for the victims at the Church of the Holy Name and Our Lady of the Sacred Heart in east London on Saturday evening.
The driver of the lorry, Maurice Robinson, from Northern Ireland, appeared in court last week charged with a string of offences, including 39 counts of manslaughter.
Extradition proceedings have also begun against 22-year-old Eamonn Harrison, who was arrested in Dublin on a European Arrest Warrant.
Police are also seeking two brothers from Northern Ireland, Ronan and Christopher Hughes, who are wanted on suspicion of manslaughter and people trafficking.
Image copyright
PA Media
The bodies were discovered in the lorry trailer in the early hours of 23 October
Do you have any information about the incident? Get in touch by emailing [email protected].
Please include a contact number if you are willing to speak to a BBC journalist. You can also contact us in the following ways:
- WhatsApp: +44 7756 165803
- Send pictures/video to [email protected]
- Or Upload your pictures/video here
- Tweet: @BBC_HaveYourSay
- Send an SMS or MMS to 61124 (UK) or +44 7624 800 100 (international)
- Please read our terms & conditions and privacy policy
