Australian swimmers Nick D'Arcy and Kenrick Monk will be sent home from this summer's London Olympics immediately after their events are over.
Monk earlier this week posted a photo on Facebook of the duo posing with high-powered weapons in a United States gun shop, with the pair later apologising for their actions.
Along with being sent home after their swimming events are completed, Monk and D'Arcy have been banned from using social media from July 16 to August 15, the Australian Olympic Committee (AOC) said on Saturday.
In a letter sent to both athletes and published on the AOC's website, chef de mission Nick Green said: "Given this incident and our previous discussions concerning your conduct, I now have concerns regarding your lack of judgment.
"As a member of the 2012 Australian Olympic Team, and as I have reminded you on previous occasions, it is an honour and a privilege to be a member of an Australian Olympic Team.
"Australian Olympians are required to meet very high standards of conduct and we cannot risk the reputation of the team through non-compliance with the team membership agreement."
D'Arcy missed the 2008 Games in Beijing after a brawl on the day the team was announced while Monk escaped police charges last September despite blaming an elbow injury on a hit-and-run driver, having in fact fallen off his skateboard.
If they are not required for the final session of the swimming programme, the AOC plan for D'Arcy and Monk to leave London's Olympic Village on August 4, therefore missing the closing ceremony on August 12.
Green insisted the decision to take the pair to the Games, which start on July 27, had nothing to do with whether they would be successful.
"This has nothing to do with medals," he said.
"It is all about upholding team values, in particular the high standards of behaviour set by those Olympians who came before you."
Swimming Australia, who ordered for the photos to be removed, are conducting their own investigation.
