JAKARTA, Sept. 3 (Xinhua) -- Indonesian police have dismantled an online gambling network operating three overseas-based websites and generating up to 1 trillion rupiah (about 56.6 million U.S. dollars) annually, arresting five suspects, police said Thursday.

National Police cybercrime director Adex Yudiswan told a press conference that the websites were controlled from overseas but operated in Indonesia and other countries.

The five suspects, arrested in July in Jakarta, South Tangerang and Semarang, allegedly helped set up a shell company and open bank accounts to collect gambling proceeds.

Police said the network processed more than 1.03 trillion rupiah in transactions from January to August, averaging about 8.6 billion rupiah per day. Authorities have frozen around 51 billion rupiah held by five payment service providers.

Police are searching for a sixth suspect believed to have directed the operation.

The suspects face up to 15 years in prison under Indonesia's electronic fund transfer and criminal laws.