Cambodia says it has extradited to China a billionaire businessman accused of masterminding a vast cryptocurrency scam in which trafficked workers were lured to forced labour camps to defraud victims globally, BBC reported. 

Chen Zhi was among three Chinese nationals arrested on 6 January after a joint investigation into transnational crime lasting several months, Cambodia said.

The US charged the 37-year-old, who was born in south-east China, last October with running internet scams from Cambodia that it said had stolen billions in cryptocurrency, according to BBC.