Hundreds of Chinese nationals that China said scammed people while pretending to be public security officials are being deported from Cambodia today.

It’s the seventh and largest mass repatriation of fraud suspects from Southeast Asia this year, requiring three chartered planes, according to the Ministry of Public Security.

Scammers pretending to be Chinese officials have spread across the world in recent years — usually in areas with large Chinese communities.

In October, three men from Taiwan were arrested in Singapore for impersonating Chinese officials in order to cheat a man of 1.72 million Singapore dollars ($1.25 million) in one of the biggest such scams this year, the Straits Times reported.

Police in Vancouver have warned residents about callers using fake caller IDs claiming to be Chinese police officers and demanding money, the Vancouver Sun reported.

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