The International Cricket Council is formulating plans to address what it has called “significant corruption concerns” at franchise tournaments around the world.

In documentation seen by BBC Sport, the ICC’s integrity unit reported that there was “increasing evidence” that corrupters were “infiltrating leagues and players in a number of different member territories”.

The ICC now plans to establish a working group that will seek to harmonize franchise cricket within the international calendar and examine how corruption could be tackled more effectively.

As part of measures taken to mitigate concerns, the ICC executive committee will discuss a number of wider strategies during its ongoing annual general meeting (AGM) in Edinburgh.

These include expanding the scope of when the ICC sanctions a domestic league, meaning more tournaments would require its approval.

Under current regulations, a national league in a country that is not a full member only requires ICC approval if it includes more than four players who have represented a national team that is a full member within a 24-month period.

The ICC is also considering strengthening its powers to intervene in leagues where there were integrity concerns that are not being addressed.

Similarly, concerns have been raised about the threat posed by the growth of illegal betting, particularly through the sponsorship of franchised leagues.

The ICC notes that these “expose host members to the risk of facilitating” illegal betting that carries “the potential for further corruption.”