Paris: Asian dominated criminal groups are laundering more than USD 140 billion of illegal sports betting, mainly on football, a watchdog group said yesterday.

The International Centre for Sport Security (ICCS), in a report released less than a month before the World Cup, said illegal gambling is a growing threat especially to football and cricket.

"Betting threatens all countries and regions, with football and cricket the sports most under siege," said the report.

The ICCS estimated that wagers worth between USD 275 billion and USD 685 billion are made each year worldwide with over 80% made illegally.