The Indian team lodged an official complaint after bowlers Jasprit Bumrah and Mohammed Siraj complained of hearing racist slurs while fielding near the boundary rope on Saturday, the third day of the match, Reuters reported.
The Indian cricket board did not immediately respond to CNN’s request for comment.
In a statement on its website, the ICC said under its anti-discrimination policy, CA is required to investigate the incident and provide a report to the sport’s governing body on the incident and “any action taken to ensure the issue has been dealt with appropriately.”
“There is no place for discrimination in our sport and we are incredibly disappointed that a small minority of fans may think that this abhorrent behaviour is acceptable,” said ICC chief executive Manu Sawhney.
“The Indian cricket team had apprised ICC Match Referee David Boon of alleged racial abuse at the end of the third day’s play. Match and stadium officials were alert on the fourth day and as such play was halted and six people were evicted following another incident just before tea,” added the ICC statement.
“It is most regrettable that an otherwise excellent Test match contested in tremendous spirit by two friendly rivals has been tarnished by the actions of a small number of spectators over the past two days.
“As hosts, we once again apologise to the Indian team.”
India bowler Ravichandran Ashwin told reporters this was his fourth tour to Australia and said his team had some “nasty” experiences while playing in Sydney in an interview posted on the Indian cricket board’s website.
“It’s definitely not acceptable in this day and age and it must be dealt with an iron fist to make sure it doesn’t happen again.”
The boundary is the closest part of a cricket pitch to the crowd.