Shocking news emerged recently as labour officials in Brazil revealed that employees from China working at a construction site linked to BYD Electric Vehicle company are believed to be victims of human trafficking activities.

Authorities in Brazil said Friday they are probing Chinese auto giant BYD and one of its contractors for suspected "trafficking" of Chinese workers building a factory in the South American country.

Chinese workers at a construction site in Brazil for a factory owned by China's electric vehicle producer BYD are victims of human trafficking, Brazilian labor authorities said on Thursday in a growing controversy in BYD's biggest overseas market.