Cambodia said it arrested three Chinese nationals, including Chen Zhi, on 6 January and extradited them to China. Chen Zhi has been accused of masterminding a vast cryptocurrency scam in which trafficked workers were lured to forced labour camps to defraud victims globally. The US charged Chen Zhi in October with running internet scams from Cambodia and alleged billions in cryptocurrency were stolen, and the US Treasury Department seized about $14bn worth of bitcoin it alleged belonged to him. The UK sanctioned his business empire, Prince Group, which has denied involvement in scams.