The Olympic Council of Ireland has confirmed that two Irish boxers were spoken to about inappropriate betting during the Rio Olympics.
It is not yet clear on which sports the bets were placed.
In a statement the OCI said: "The OCI can confirm that two Irish boxers at Rio 2016 were spoken to
about inappropriate betting activity during the Games.
"The matter is still under review so there will be no further comment at this stage."
The placing of bets at Olympic Games by athletes and officials is not illegal, but it is prohibited by the IOC.
The Irish Athletic Boxing Association said it has not received any notification from the OCI regarding the allegations of inappropriate betting activity but understands the matter is under review.
In a statement, the association said it would be "very disappointed if any members of the team have engaged in a prohibited activity under the Conditions of Participation".
It said that any form of gambling is prohibited for athletes taking part in the Games.
The IABA also said that any potential disciplinary action is a matter for the OCI.