Vietnam

Since the Essex lorry tragedy that killed 39 Vietnamese people last year, our investigation has been tracking the gangs that smuggle people into the UK.

Nguyen Thi Van and Tran Hai Loc were the only couple inside the trailer where they died alongside 37 others in Grays, Essex.

The Home Secretary's comments were made as the prosecution of four alleged people-smugglers linked to the deaths was continuing at the Old Bailey.