London (UK): The UK police on Friday arrested a fourth person on suspicion of human trafficking and manslaughter as part of an investigation into the incident in which bodies of 39 people were found in a truck in southeastern England earlier this week.

The arrest took place at London's Stansted airport, Sputnik reported. The development comes after a man and a woman, both aged 38, were arrested on the same charges on Friday in Warrington, northern England. In addition, the 25-year-old driver of the truck remains in custody on suspicion of murder.