Twenty-three South Koreans arrested in the capital’s Sen Sok district on Friday over an alleged voice over internet protocol (VoIP) ring involved in online gambling were questioned at Phnom Penh Municipal Court yesterday.

The men, yet to be charged, mostly arrived in Cambodia in late 2015 and earlier this year, though some have been frequent visitors in the past, said anti-terrorism department director Y Sok Khy.

"They did not ask for permission to use technology to operate online gaming and there are other things that are connected to crimes," Khy said.

Ou Borath, secretary-general at the Ministry of Post and Telecommunications, which assisted in the case, said the defendants also used VoIP to steal.

Officials yesterday differed as to whether the men would be charged in Cambodia or repatriated to South Korea.