US treasury department has sanctioned Chinese-born Cambodian tycoon Chen Zhi – alleged mastermind of a cyber-crime empire in south-east Asia

The UK has also frozen assets linked to the alleged scammers, including a £100m London office building.

Crackdown targets entities and individuals linked to Prince Group network that used trafficked workers for global fraud.

US treasury department has sanctioned Chinese-born Cambodian tycoon Chen Zhi – alleged mastermind of a cyber-crime empire in south-east Asia