Authorities in Taiwan have disrupted an unauthorized online gambling operation along with the ‘largest known’ underground banking network moving money off the Chinese mainland.

On Christmas Day, the district prosecutor’s office in Taiwan’s Chiayi County announced that it had coordinated raids on 72 locations in multiple cities, including the capital Taipei, searching for evidence of underground banking and illegal gambling.

The raids were sparked after the disruption in August of an underground banking network that the authorities believe was an offshoot of the main network disrupted this week. Police have the alleged ringleader in custody while the man’s partner reportedly fled to the Philippines, where the ring has established a separate betting office.

The authorities linked the case to the online gambling tech support hub that was rumbled in Taichung City earlier this month. The ring offered sports betting and casino gambling via a number of websites, with most of their customers based in mainland China.