International Cricket Council chief executive Malcolm Speed is consulting both the Indian and Pakistan boards over reports of racist incidents in matches during the past week.
Alleged unseemly chanting in the crowd at India's one-day international against Australia was followed by accounts of racist abuse towards South Africa players and officials in their Test match against Pakistan in Lahore.
Both have disquieted the ICC, and Speed has confirmed he has written to the Board of Control for Cricket in India (BCCI) and the Pakistan Cricket Board (PCB), requesting their comments.
Speed said: "The ICC retains a zero tolerance to racism, as illustrated in our anti-racism code - which was strengthened last year following consultation with our members and the ICC board.
"The code outlines measures host members are expected to undertake, and those measures were unanimously approved by the ICC's board.
"We need to understand whether those measures are working. If they are not then our members need to tell us why so we can ensure cricket remains free from the scourge of racism."
Speed added there will be ample opportunity in the near future to discuss the matter, should it be deemed there is a problem which needs to be addressed.
"With the ICC board set to meet in Dubai at the end of this month, there is scope for discussion on this subject then - if appropriate - to ensure it is properly addressed on an ongoing basis," he concluded.