PORT Adelaide has confirmed the female member who threw an object at Adelaide forward Eddie Betts late in Saturday night's Showdown was racially motivated, but has stopped short of banning the offender for life.

After speaking to witnesses, the Power said the member had been "banned indefinitely from attending any Port Adelaide games in the future", contradicting earlier comments made by chairman David Koch.

The club added it would meet with the female member at the centre of the controversy this week and had offered her the opportunity to take part in the club's Aboriginal cultural awareness programs.

"As part of this program, Port Adelaide's Aboriginal programs manager Paul Vandenbergh and the club's seven Aboriginal players would educate her on cultural issues that continue to have an impact on the Aboriginal community today and the hurt which actions such as hers cause others," the club said in a statement on Sunday evening. 

The AFL's recently appointed inclusion and social policy manager, Tanya Hosch, condemned the actions and said the League would not tolerate such conduct at its games.

"Without commenting on this specific incident in detail … the throwing of a banana and its association with slurs on indigenous Australians and other cultural groups, which has sadly occurred in sports around the world, is deeply racist and offensive, and should be rejected by every part of our game, including clubs, players, fans and supporters," Hosch said in a statement.

Paul Briggs, chair of the AFL's indigenous advisory committee, echoed Hosch's sentiments.

"While speculation and debate will occur around the motivation of such behaviour, it is clearly an unambiguous racist act, something most fair-minded Australians would find appalling and unacceptable," Briggs said.

Earlier on Sunday, Koch said he would be ''absolutely disgusted" if the internal investigation discovered the incident was racially motivated, adding the Power would "ban her for life" if it carried racial connotations.

"If it is racially motivated, not only would we ban her for life, we would encourage her to come and sit with our Aboriginal players and try and understand what these actions mean to them," Koch said.

The chairman later clarified the Power's stance via social media, saying they did not impose a lifetime ban based on the advice given by the club's Aboriginal leaders.

Koch added Betts had also been consulted as part of the investigation and was fully supportive of the outcome.

The incident occurred in the final quarter of Adelaide's 15-point win over the Power.

On video, a woman believed to be in her mid-20s was seen throwing an object (possibly a banana) towards Betts after he kicked his fifth goal of the game, but the object is batted away by Crows teammate Josh Jenkins

"From a club point of view, it's absolutely unacceptable to throw any object on to the playing field at any time," Koch said.

"We have a code of conduct that expressly forbids that.

"We've identified the person responsible, we've called them, they have their phone off at the moment, so we're trying to investigate further into the motivation for doing that and why on earth anyone would think of doing it.

"In the interest of fairness, we need to speak to the person responsible to try and find out that motivation.

"We've revoked the membership not only for this year, but next year as well.

"Whether we take any further action, will be decided on the outcome of the motivation and further investigation."

Koch said he had spoken with Betts on Sunday morning along with Crows chairman Rob Chapman.

"Eddie is not only an incredible footballer, but an amazing human being," Koch said.

"His response was, 'Thanks very much for contacting me, I hope you're not taking it personally, it's across every club in the AFL', and to quote him, 'I'm in awe of what your club does in terms of community programs for the Aboriginal programs and for what you do for my brothers at Port Adelaide'."

WATCH: Eddie entertains to the end 

Both the Crows and the Power released statements in the early hours of Sunday morning condemning the behaviour. 

"The Adelaide Football Club is both disappointed and disgusted at the behaviour of some members of the crowd during tonight’s Showdown at Adelaide Oval,'' the Crows statement said. 

"Of particular concern, an object was thrown onto the field of play and in the direction of one of our players.

"The club has contacted the Port Adelaide Football Club, Adelaide Oval Stadium Management Authority and AFL, and has expressed in the strongest possible terms that we expect significant action to be taken against any person found guilty of anti-social behaviour."

The Power added, "Port Adelaide is appalled by the vision and will not tolerate this type of anti-social behaviour at its games.

"Any object thrown onto the field in the direction of players, coaches or umpires is completely unacceptable and the club will conduct a full investigation in the coming days.

"Port Adelaide implemented a spectator code of conduct in 2014 for all its members and supporters to ensure Adelaide Oval is a family friendly environment at its games."

On Sunday, an AFL statement said: "The AFL has been in contact with the Port Adelaide FC this morning after a crowd incident at last night's round 22 match involving Adelaide Crows' player Eddie Betts. 

"The AFL abhors anti-social behaviour and has informed the club it will provide whatever assistance is required for the club to deal with the matter.  

"The AFL wishes to repeat for the record that such behaviour in any form will not be tolerated and the game must be a welcoming environment for all players and supporters."

Adelaide players including captain Taylor Walker have taken to social media to comment on the incident.

Eddie Betts is chaired from the ground after game 250. Picture: AFL Photos
Eddie Betts